tan9°. tan27°. tan45°. tan72°. tan81°= 1​

could u plz solve it with clear process

Answers

Answer 1

Correct question:-

Prove that tan9.tan17.tan45.tan73.tan81=1

LHS

[tex]\\ \sf\longmapsto tan9.tan17.tan45.tan73.tan81[/tex]

[tex]\\ \sf\longmapsto tan9.tan81.tan17.tan73.tan45[/tex]

[tex]\\ \sf\longmapsto tan(90-81).tan81.tan(90-73).tan73.1[/tex]

[tex]\\ \sf\longmapsto cot81.tan81.cot73.tan73[/tex]

[tex]\\ \sf\longmapsto 1.1[/tex]

[tex]\\ \sf\longmapsto 1[/tex]


Related Questions

Gold and silver are mixed in the ratio 7:4.if 36gm of silver is used.How many gold is used

Answers

Answer:

63gm

Step-by-step explanation:

7 gold : 4 silver

It gives you 36 silver.

to get from 4 silver to 36 silver you multiply by 9.

you multiply the gold by the same amount 9.

7*9= 63

you can see that for every 7 gold pieces there is 4 silver pieces. they keep piling up the pieces until there's 36 silver pieces. now they wanna know how much gold there is.

What is the student error in the multiplication below?

Answers

Answer:

below what

Step-by-step explanation:

nye nye nye nye nye nye nye ​

Answers

Answer:

what question is this lol

Step-by-step explanation:

yes loving it your amazing hope your doing well in school

I need some help with this thank you!

Answers

For part A, x equals 0.

Therefore (7²)⁰=7⁰=1

For part B, x could be any number because 0 multiplied by any number equals 0. eg. (7⁰)⁹=7⁰=1

Hope this helps!

Answer please I appreciate it foo:)

Answers

Answer:

Your answer is the second one.

Step-by-step explanation:

All of the x's and y's match up.

Hope this helps!

Find the products in simplest form.
8 5
21 16
23. 15 =
RETRY

Answers

Answer:

part A

[tex] \frac{8}{21} . \: \frac{5}{16} \\ \\ \frac{5}{42} \\ \\ 0.119[/tex]

part B

[tex] \frac{12}{25} . \: \frac{15}{16} \\ \\ \frac{9}{20} \\ \\ 0.45[/tex]

Answer:

8/21 . 5/16 = 5/42

12/25 . 15/16 = 9/20

Step-by-step explanation:

16 = 2 x 8

8/21 . 5/16

= ( 8 x 5 ) / ( 21 x 16 )

= ( 8 x 5 ) / ( 21 x 2 x 8 )

= 5 / ( 21 x 2 )

= 5/42

12 = 3 x 4

15 = 3 x 5

25 = 5 x 5

16 = 4 x 4

12/25 . 15/16

= ( 3 x 4 ) / ( 5 x 5 ) . ( 3 x 5 ) / ( 4 x 4 )

= ( 3 x 4 x 3 x 5 ) / ( 5 x 5 x 4 x 4 )

= ( 3 x 3 ) / ( 5 x 4 )

= 9/20

triangle ABC has vertices A(2,3), B(8,3), C(5,8). show that the triangle is isosceles​

Answers

The coordinates match up, as B has 3 and A also has the coordinate 3. This means they are in the line and are isosceles

I really need someone to help me out!

Answers

Answer:

y = 6x-13

Step-by-step explanation:

Given: y+1=6(x-2)

Distribute 6: y +1 = 6x -12

Isolate y: y = 6x -13 (subtracted 1 from both sides)

This is now in the form y = mx +b

Hope this helps!

y+1=6x+12
i hope this helped :)

alguien que me diga como se saca la X en ecuaciones cuadraticas porfaaaaaaaaa

Answers

Answer:

lol

Step-by-step explanation:

to get x in quadratic equations, factor it

can anyone plz tell me how to lucid dream tonight without an alarm im 13 and i never had one ill give brainliet

Answers

get a journal and pencil and when you go to sleep, don't put on any alarms. then write down in the morning what you dreamt about. every detail you can thing of. if you have the dream again, write down more details. this will help you begin to lucid dream.

fill in the blank
( ___-2a)^2=9b^2-___+___

Answers

Answer:

(3b-2a)^2=9b^2-12ab+4a^2

Step-by-step explanation:

Using the formula (a-b)^2=a^2-2ab-b^2, you can plug in the values to get your answer. (Sorry I can't really explain more, it's just using the formula. Hope this helps)

I still need this question

Answers

Answer:

area is 52

Step-by-step explanation:

PLEASE HELP

what is the inverse of tge function

Answers

Answer:

its the lastone

Step-by-step explanation:

Mia’s house has increased in value by $12000 in 15 months. Work out the rate of increase in the value of Mia’s house. Give your answer in dollars per month.Bạn đã gửi

Answers

Answer: 800 dollars per month

Step-by-step explanation:

12000 divided by 15 is 800

800 x 15 = 12000

HELP ME ASAP!!!!!!!!!!

Answers

Answer: x(2) -9

I’m pretty sure that it

Answer:

2x - 9

Step-by-step explanation:

let the number be x then multiplying by 2 is 2x , so

2x - 9 ← algebraic expression

+
In the figure below, if m<1 = (x + 16)° and m The < sign is angle

Answers

Answer:

Step-by-step explanation:

∠1 + ∠BFE = 180   {linear pair}

x + 16 + 3x + 20 = 180

x + 3x + 16 + 20 = 180   {Combine like terms}

4x + 36 = 180

Subtract 36 from both sides

4x = 180 - 36

4x = 144

Divide both sides by 4

x = 144/4

x = 36

What is the equation of the line that passes through the point (5, 4) and is perpendicular to the line whose equation is 2x + y = 3 in standard form?

Answers

So a line that is perpendicular is a line that intercepts other line at a 90 degree angle.

Slope of perpendicular lines is the opposite sign and the reciprocal of the other.

So if your slope was 2 the perpendicular line would have a slope of -1/2.

So the equation, 2x + y = 3

Can be rewritten as

y= -2x+3

Perpendicular slope: 1/2

Since it intercepts/ passes the coordinates (5,4) it means that those values are included in the function input x and output y.

y=mx+b

4=1/2(5)+b

Solve for b (y intercept)

4-2.5=b

1.5=b

So the equation of the perpendicular is

y=1/2x+3/2 or y=.5x+1.5

helppp
what is the slope?

Answers

Answer:

I don't see the image either-

Step-by-step explanation:

Upload this again please so we can answer this :')

4(3 × 2) + (8 - 3)^2 - 6^2 + 3 × 9 - 2^3 + 1

Show your work

[Thank you]

Answers

Answer:

33

Step-by-step explanation:

if its in () its the 1th step and then the rest u can continue

$400 at 6.3% for 4 years. Find the simple interest

Answers

Answer:

the amount of interest is $100.80

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 6.3%/100 = 0.063 per year,

then, solving our equation

I = 400 × 0.063 × 4 = 100.8

I = $ 100.80

The simple interest accumulated

on a principal of $ 400.00

at a rate of 6.3% per year

for 4 years is $ 100.80.

BRAINLIEST PLEASE!

Helpppp plsssssssdssssssssss

Answers

Answer:

y = x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 2, 1) and (x₂, y₂ ) = (- 1, 2) ← 2 points on the line

m = [tex]\frac{2-1}{-1-(-2)}[/tex] = [tex]\frac{1}{-1+2}[/tex] = [tex]\frac{1}{1}[/tex] = 1

The line crosses the y- axis at (0, 2 ) ⇒ c = 2

y = x + 2 ← equation of line

What is the answer for x?

Answers

The value of x is 5 by using external angle

Answer:

Step-by-step explanation:

The triangle’s angles add up to 180 degrees

so 40 + (16x + 2) + ∠C = 180

The straight angle is 180°

so ∠C = 180 - (23x + 7)  

∠C = 180 - 23x -7

∠C = 173 - 23x

and then 40 + (16x + 2) +(173 - 23x) = 180

40 + 16x + 2 + 173 - 23x = 180

215 - 7x = 180

-7x = 180 - 215

-7x = -35

x = 5

please give me a brainliest answer

Solve: (x - y)/(sqrt(x) + 1) = 2 + (sqrt(x) - 5)/3​

Answers

I think it might be:

Megan boarded a train at 10:23 and arrived at her destination
3 hours 5 minutes later. What time did she arrive at her.
destination

Answers

Answer:

She arrived at 1:28

14) Andre went hiking by his house, The first trail he hiked took him 4.5 miles away from his
house. The second trail he hiked took him 2.4 miles closer to his house. The third trail
took him 1.7 miles further away from his house. After Andre hiked the three trails, how
far from his house was he?

Answers

Answer : 3.8 miles
Step by step explanation :
The calculation is the following :
4.5 miles of the first hike minus 2.4 miles of the second hike
4.5 - 2.4 = 2.1
Then you have to add those 2.1 miles the 1.7 miles of the third and last hike
2.1 + 1.7 = 3.8 miles

May I please receive help?

Answers

Answer:

m‹F=25°

AB=12

Step-by-step explanation:

HOPE IT HELPS

I need to fill out the GRAPH plss

Answers

Answer:

1 rabbit is 4 dollars

Step-by-step explanation:

for every rabbit you have, multiply it by 4 to find the number of dollars

Find the measure of each numbered angle if m<1=72 and m<3=26.

<2=?

<4=?

Answers

Answer:

Step-by-step explanation:

<2=2*1

<4= 2*2

2|x/2+3|=1, solve for x, there is two answers.

please help asap I will give brainiest

Answers

Answer: -5 and -7

Step-by-step explanation:

|[tex]\frac{x}{2}[/tex]+3| = [tex]\frac{1}{2}[/tex]

It has 2 cases

the first case ;

[tex]\frac{x}{2}[/tex] + 3 = [tex]\frac{1}{2}[/tex]

[tex]\frac{x}{2}[/tex] = [tex]\frac{-5}{2}[/tex]

x = -5

the second case;

[tex]\frac{x}{2}[/tex] + 3 = [tex]\frac{-1}{2}[/tex]

[tex]\frac{x}{2}[/tex] = [tex]\frac{-7}{2}[/tex]

x = -7

please give me a brainliest answer

If the room is a 14 by 12' rectangle then the strip of wallpaper needs to be at least how long?

Answers

Answer:

52 ft.

Step-by-step explanation:

In this case, we need to calculate a perimeter, which is the sum of all sides of the rectangle.

So, rectangles has opposite sides equal, therefore, the perimeter should be:

; having L as the larger side.

Hence, the strip of wallpaper needs to be as least 52 ft.

Other Questions
What is the coefficient in the expression - X + 21? hello can anyone help me with this question thx Help me for 75 points. The nucleus pull on its electrons, taking into account any attractions weakened by shielding is called the: Who is Matthew Shepard....What happened and why? Which city-states boardered the Ottoman Empire? What impact could this have? Why are the tribes of the Powhatan Confederacy called Algonquian? because of their geographic location because of their language because of their medical practices because of their religion what is the converse of "If you know Spanish, you can join the Foreign Language Club." who was the first african american pictured on a u.s. postage stamp Keisha and Jen went out to eat for dinner their meal together were $45.76 they want to leave a 20% tip how much total It doesnt matter what your goal is. Any idea you may create is achievable T or Which kind of triangle is showing It is an artwork that show Mary, reclining in bed surrounded by the apostles who grieve, pray and in late medieval art perform the right for the dying. total cents is $4. there are 20 more nickels than quarters. how many nickels and how many quarters. 20. The specific molecule that an enzyme interacts with is called the ___ Fill in the blank please help!!! 1. A new drill is used to dig a hole in the ground. At noon, the hole is 13.2 feet deep when the new drill is turned on for the first time that day. At 2 p.m., the drill has dug the hole to be feet deep. The new drill dug 1.5 times as much of the hole as the old drill would have in the same length of time.(a) What expression represents the number of feet the new drill dug?(b) How many feet would the old drill have dug in the same length of time? Show your work. Answer the question in a complete sentence. what is the importance of hydrogenation what is the term for comparing your current progress toward a goal to that goal in order to determine effort allocation? what does yo necesito la carpeta de argollas mean in spanish If anybody sees this can they help me out?And on that cheek, and oer that brow,So soft, so calm, yet eloquent,The smiles that win, the tints that glow,But tell of days in goodness spent,A mind at peace with all below,A heart whose love is innocent!The rhythm and rhyme scheme of this stanza reflect Question 12 options:A. A heart beating with passionate love B. the pretty features of the woman's face C. The passing of time from day to night D. the calm peace the speaker sees in the woman Re-read the following lines from Edna Millays Love is Not AllLove is not all: it is not meat nor drinkNor slumber nor a roof against the rain;Nor yet a floating spar to men that sinkWhat type of figurative language is present in the lines above?Question 10 options:A. SimileB. Repetition C. HyperboleD. Assonance The reader can infer that the speaker Question 9 options:A. Believes love is the only thing in life that truly mattersB. Believes that love is not necessary for survivalC. Desires to find love more than anythingD. Would rather keep the memory of her love than trade it for something necessary for survival