(tan^(2)x)/(secx)=secx-cosx how do i verify the identity

Answers

Answer 1

Answer:

sec x − cos x = sin x tan x? First convert all terms into sinx and cosx. Second apply fraction sum rules to the LHS. and replace secx with 1 cosx. The LHS, secx − cosx becomes 1 cosx − cosx. The RHS, sinxtanx becomes sinx sinx cosx or sin2x cosx.

Step-by-step explanation:


Related Questions

What is the perimeter of the following square in terms of yards, feet, and inches 35 in yards - feet + inches =

Answers

Answer:

there is no square

Step-by-step explanation:

Find the value of x in the equation
X+2.37=5.94

Answers

Answer:

x = 3.57

Step-by-step explanation:

5.94 - 2.37 = 3.57

Hope this helped

Answer:

3.57

Step-by-step explanation:

Subtract 2.37 from both sides.

5.94 - 2.37 = 3.57

Rayna has 5 pounds of ground beef to make hamburgers for a picnic. Each hamburger uses 14 pound of ground beef. How many hamburgers can Rayna make?

Answers

Answer:20

We have 5 pounds of ground beef

We are making 1/4 pound hamburgers

Take the number of pounds of beef and divide by the amount of beef per burger and we can determine the number of patties.

5 ÷1/4

Copy dot flip

5 * 4/1

20

We will have 20 patties

Step-by-step explanation:

find c !! please and thank you

Answers

Answer:

9.7 cm

Step-by-step explanation:

[tex] \frac{ \sin(82) }{c} = \frac{ \sin( 55)}{8} \\ c = \frac{8 \times \sin(82) }{ \sin(55) } = \\ c = \frac{7.922}{0.819} = 9.67 = 9.7[/tex]

What is the reciprocal of 11 over 2

Answers

Answer:

2/11

Step-by-step explanation:

reciprocal is just the fraction flipped.

reciprocal is the opposite of everything/ the flip of everything so the reciprocal of 11/2 is -2/11. if that wasn’t clear, i’ll show a few examples

recip of -2 = 1/2
recip of 4/5 = -5/4

What percent of 11 is 54.7? Round the answer to the nearest
hundredth of a percent if necessary.
А
4972.7%
B
60.2%
с
601.7%
D
497.27%

Answers

Answer:

C

Step-by-step explanation:

Help me out please mathematic ✏️

Answers

The answer is 65 degrees.
To solve this you need to take the two degree values you already have, 90 degrees and 25 degrees. From there you can subtract 90 from 25.

Answer please don't put wrong answer. 30 points.

Answers

it would be D y=2x +2

D= y=2x+2 that should be the answer

Solve using the Arrow way
440+220=
670+_____=890
___+756=945

Answers

Answer:

440 + 220 = 660

670 + 220 = 890

189 + 756 = 945

Step-by-step explanation:

Write an equation of the line that passes through (−4,−1) and is perpendicular to the line y=4/3x+6.

Answers

Answer:

y=-1/4x - 2

Step-by-step explanation:

gradient of perpendicular lines is got by :M1M2= -1

y =4/3x + 6 rearrange 3y = 4x + 18

gradient is 4

4M2 =-1

M2 =-1/4

then is -2

hence y = mx + c is y = -1/4 x -2

Where would parenthesis need to be placed in the expression to get a value of 44?


(A) 2+3^2×(5−3)


(B) 2+(3^2×5)−3


(C) (2+3^2)×5−3


(D) (2+3)^2×5−3

Answers

Answer:

B. 2 + (3^2 * 5) - 3

Step-by-step explanation:

Hey! Sorry for the long wait, I'm still in school and can't really be here 24/7 but I'm proud to announce that I have your answer!

So we have 4 expressions and we need to get our answer to 44. This question already includes the notion that parenthesis placements make a huge difference, so let's review them.

A.

2 + 3^2 * (5 - 3)

Use PEMDAS

2 + 3^2 * 2

2 + 9 * 2

2 + 18

20

B.

2 + (3^2 * 5) - 3

2 + (9 * 5) - 3

2 + 45 - 3

47 - 3

44

C.

(2 + 3^2) * 5 - 3

(2 + 9) * 5 - 3

11 * 5 - 3

55 - 3

52

D.

(2 + 3)^2 * 5 - 3

(5)^2 * 5 - 3

25 * 5 - 3

125 - 3

122

As we can see, B. is our answer due to its equivlance to 44.

HELPPPP!!!!!! Not sure what to put

Answers

Answer: Believe you can and you're halfway there

Step-by-step explanation: Have a great day

Answer:

The third answer is correct, AED=CEB

Step-by-step explanation:

The exhaust system of an automobile is first given an emission check and then given a vibration check. The result of an emissions check can be satisfactory (S), marginal (M), or unsatisfactory (U), and the result of a vibration check can be high vibration (H) or low vibration (L) or no vibration (N).
What is the sample space for this situation?
Sample Space = { }
Find the event that the emissions check is satisfactory. Event = { }

Answers

Answer:

Step-by-step explanation:

The sample space is known to be the set of all possible outcomes of an experiment we cannot predict its outcome while the event space showcases the subset of the sample space, this may be a collection of outcomes of a random experiment.

From the given information:

The sample space = {SH, SL, SN, MH, ML, MN,UH, UL, UN}

The event that the emissions check is satisfactory = {SH, SL, SN}

i need help aklllllllllllllllllfdp[;lgjfg

Answers

Answer:

i think its 17

Step-by-step explanation:

That  would beeeeeeeeeeeeeeeeeee 4x - 1

how do i write 152 as a mixed number

Answers

Answer: 1  13/25

Step 1: Write down the percent divided by 100 like this:

152% = 152/100

Step 2: Multiply both top and bottom by 10 for every number after the decimal point:

As 152 is an integer, we don't have numbers after the decimal point. So, we just go to step 3.

Step 3: Simplify (or reduce) the above fraction by dividing both numerator and denominator by the GCD (Greatest Common Divisor) between them. In this case, GCD(152,100) = 4. So,

(152÷4)/(100÷4) = 38/25 when reduced to the simplest form.

As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 152/100 is also equal to 1 13/25 when expressed as a mixed number.

A company logo is made up of a square and three identical triangles.

What is the area of the logo?

Answers

Answer:

[tex]the \: area \: of \: the \: logo \: is \: {91cm}^{2} [/tex]

Step-by-step explanation:

To determine the area of the logo you have to calculate the area of the triangle and the square that comform it and then add the four areas.

Area of the square.

To calculate the area of the square you have to calculate the square of one of its sides, following the formula:

[tex]a = {a}^{2} [/tex]

Where "a" is the length of one of its side.

The side length of the square is a=7cm, so its area will be:

[tex]asquare = {7}^{2} \\ asquare = {49cm}^{2} [/tex]

Area of the triangles.

The three triangles are equal, they have a base equal to the side of the square, i.e. with a length of 7cm, and their height is h=4cm.

To calculate the area of one triangle, you have to multiply its base by its height and divide by 2, following the formula:

[tex]a = \frac{b.h}{2} \\ a = \frac{7.4}{2} \\ a = \frac{28}{2} \\ a = {14cm}^{2} [/tex]

The area calculated the correspond to one triangle, since all triangles are congruent, you have to multiply the said area by 3 to determine the area of three figures:

[tex]atriangles = 3a \\ atriangles = {42cm}^{2} [/tex]

Now that the area of all shape are calculated, you have to add them to determine the area of the logo:

[tex]alogo = asquare + atriangle \\ alogo = 49 + 42 \\ alogo = {91cm}^{2} [/tex]

will give brainliest! please helppp
1. Solve for m A. 150
B. 105
C. 90
D. 75

2. If AD = 3x + 18, AB = 5x + 10, and BC = 12x + 2, what is BC?
A. 19.5
B. 50
C. 30
D. 15.7

3. Which of the following statements is a property of quadrilaterals?
A. Quadrilaterals have 4 corners called vertices.
B. Quadrilaterals have 3 dimensions.
C. Quadrilaterals have 4 curved edges.
D. Quadrilaterals have 4 curved sides.

4. Classify the quadrilateral below.
A. Kite
B. Rectangle
C. Rhombus
D. Trapezoid

Thank you!

Answers

upload the images!! we can’t see anything

ANSWER QUICKLY PLEASE!!
A right triangle and some of its measurements are shown in this diagram.

Based on the measurements shown in the diagram, what is the value of t?

Answers

It is 30 degrees. Add 90 and 60 to get 180. Then subtract that from 180, since all triangles interior angles add to 180. You’ll get 30.

Answer:

[tex]6\sqrt{3[/tex]

Step-by-step explanation:

find the value of x in this parellogram ​

Answers

Answer:

Step-by-step explanation:

4x-15=x-3 subtract x from both sides

3x-15=-3 add 15 to both sides

3x=12 divide both sides by 3

x=4

Danny flies a drone in a circular path around an object that is 210 feet west and 220 feet south of his position. The drone's path takes it over a point that is 160 feet east and 160 feet south of him. Find an equation for the drone's path. (Assume Danny is located at the origin, with the horizontal axis running east-west and the vertical axis running north-south)

Answers

Answer:

The answer is below

Step-by-step explanation:

A circle is the locus of a points such that its distance from a fixed point is always constant.

Since the drone moves in a circular path, therefore the path of the drone forms a circle. The equation of a circle is given by:

(x - h)² + (y - k)² = r²;  where (h, k) is the center of the circle and r is the radius of the circle.

Danny is located at the origin. Since the drone flies in a circular path around an object that is 210 feet west and 220 feet south of his position. Hence the center of the circular path is (-210, -220).

Also, the drone's path takes it over a point that is 160 feet east and 160 feet south of him i.e. (160, -160). Therefore the radius of the circle is the distance between point (-210, -220) and point  (160, -160)

[tex]radius=\sqrt{(160-(-210))^2+(-160-(-220))^2}=\sqrt{140500}[/tex]

Using (x - h)² + (y - k)² = r²:

[x - (-210)]² + [y - (-220)]² = (√140500)²

(x + 210)² + (y + 220)² = 140500

x² + 420x + 44100 + y² + 440y + 48400 = 140500

x² + y² + 420x + 440y - 48000 = 0

Help me plzzz
Nick spent 3/4 of an hour each day for 9 days reading a book. What is the total number of hours Nick spent reading the book during these 9 days? A. hours B. hours C. hours D. hours Reset Submit

Answers

Answer:

B

Step-by-step explanation:

B. hours.........................

Answer:

Option B- 6.75 hrsor 6 3/4 hr  

Step-by-step explanation:

I day = 3/4 hr

No: of days = 9  

Total hrs =  3/4 x 9 = 6.75 hrs

I hope im right!!

Order the following least to greatest (4, -2, -19, 0, 25) ..help

Answers

-19,-2,0,4,25 is the order

please help will give brainliest if can :)

Answers

Answer:

56 degrees

Step-by-step explanation:

Hope this helps

Answer:

124 degrees

Step-by-step explanation: I added them both together

2/5 4/5 comparing fractions

Answers

Answer:

1:2

Step-by-step explanation:

The ratio is 2:4, or 1:2

Hope I helped!

What is the volume of the rectangular prism?
* 1 cubic inch
А
40 cubic inches
B
60 cubic inches
52 cubic inches
D
120 cubic inches

Answers

The answer is B. 60 cubic inches
5 x 6 x 2 = 60

Which of the following is not true about the boundary line in the graph of a linear inequality in two​ variables?
A. The points on the boundary line are always solutions to the linear inequality.
B. The boundary line separates the ordered pair solutions to the inequality from the ordered pairs that are not solutions to the inequality.
C. A solid line is used when the inequality is​ non-strict ​( ≤ or ≥ ​).
D. A dashed line is used when the inequality is strict ​( < or > ​)

Answers

D. A dashed line is used when the inequality is strict ​( < or > ​)

A linear inequality in two variables is obtained by taking a linear equation in two variables, and replacing the equality sign with any one of the four inequality signs: <,>,=<,>=.

The graphed region of points satisfying the inequality is always half of the plane bounded by the corresponding line.

When the inequality is [tex]\leq[/tex] or [tex]\geq[/tex], the line is included. Otherwise, the line is excluded.

So, A dashed line is used when the inequality is strict ​( < or > ​) is not true about the boundary line in the graph of a linear inequality in two​ variables

Therefore, the correct option is D.

Learn more:https://brainly.com/question/15816805

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

13x + 13 if you count all of them its the only option that matches.

Help me pls pls pls

Answers

Answer:

r [tex]\leq[/tex] -0.9

Step-by-step explanation:

hope this helped

HELPP

Which of the following best represents the equation of the line shown on the
graph below?

Answers

Answer:

free d ddddddd

yes fast

????

What is the value of x?

Enter your answer in the box.

Answers

Answer:

59

Step-by-step explanation:

You can see that this angle is a right angle which means that it is a total of 90 degrees.

24 + 7 = 31

90 - 31 = 59

You can also check if your answer is right by adding all the measurements.

24 + 7 + 59 = 90

Hope this helps, thank you !!

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