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3 years ago

15

HELP YA GIRL PLZZZZ I WILL REWARD

1 answer:

Pie3 years ago

5 0

The answer is true as the y value of y=sin

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Prove that:- (1-sinA)(1+sinA)÷(1+cosA)(1-cosA)=cot^2A

astraxan [27]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

sin²x + cos²x = 1 , then

sin²x = 1 - cos²x and cos²x = 1 - sin²x

Consider the left side

$\frac{(1-sinA)(1 + sinA)}{(1+cosA)(1-cosA)}$ ← expand numerator/denominator using FOIL

= $\frac{1-sin^2A}{1-cos^2A}$

= $\frac{1-(1-cos^2A)}{1-(1-sin^2A)}$

= $\frac{1-1+cos^2A}{1-1+sin^2A}$

= $\frac{cos^2A}{sin^2A}$

= cot²A = right side , thus proven

6 0

3 years ago

Billy has 95 stickers. He shares 4 with<br> Harry. How many stickers will Billy have?

Leni [432]

Answer: 91

Step-by-step explanation:

95 - 4 (That he gave to Harry) = 91

Hope this helped!

7 0

3 years ago

Read 2 more answers

Write 7.96 as a mixed number in simplest form

Vilka [71]

Answer:

199/25

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Rosie spent $25 on a new DVD. What integer represents Rosie’s situation? A 50, B -25, C 0, D 25

Alborosie

I think b or d are answer ...

8 0

3 years ago

Rewrite the following equation in exponential form.

ira [324]

Answer:

5² = 25

Step-by-step explanation:

log5 25 = 2

log(b) (x) = (y)

make b^(y) = (x)

5² = 25

I hope this helps!

5 0

2 years ago