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3 years ago

7

Question below answer correctly please

1 answer:

GREYUIT [131]3 years ago

5 0

what equation am i suppose to be solving

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Prove that 1/sin^2A -1/tan^2A= 1

Vika [28.1K]

Answer:

Step-by-step explanation:

$LHS =\dfrac{1}{Sin^{2} \ A }-\dfrac{1}{Tan^{2} \ A }\\\\\\ = \dfrac{1}{sin^{2} \ A}- \dfrac{1}{\dfrac{Sin^{2} \ A}{Cos^{2} \ A}}\\\\\\= \dfrac{1}{sin^{2} \ A } - \dfrac{Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{1-Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{Sin^{2} \ A}{Sin^{2} \ A}\\\\\\= 1 = \ RHS$

Hint: 1 - Cos² A = Sin² A

4 0

2 years ago

Explain how you would show 135% on a 10-by-10 grid.Then use the grids below to show 135%. HELP QUICK!

Alja [10]

Just color one intire grid and thirty five units on the other

5 0

3 years ago

Help please will give brainliest

Ne4ueva [31]

Answer:

18.

a) 6k + 2y

b) 2x^2 + 2x

c) 16h

19. 4.5 cm

20.

a) x > 4.5

b) x >= 32

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Let p(x)=x^3+15x^2-8x+2. What is the remainder when p(x) is divided by x-2?

Oduvanchick [21]

Answer:

Step-by-step explanation:

Using synthetic division, the zeros goes into the box, which would be -1

-1 | 1 -3 -1 24

-1 4 -3

1 -4 3 21

The remainder is 21

4 0

3 years ago

3-X²=-7<br><br> How do I solve

irga5000 [103]

Answer:

x = 3.162

Step-by-step explanation:

Your first step is to get x by itself by subtracting 3 from both sides.

3- $x^{2}$ = -7

- $x^{2}$ = -10

Now multiply by both sidex by -1 to make x positive.

$x^{2}$ = 10

now take the square root of both sides.

$\sqrt {x^{2}$ = $\sqrt{10}$

x = $\sqrt{10}$

x = 3.162

8 0

3 years ago