Question

i've never seen one of these questions in my entire lifetime on this earth. -_-

Answer 1

What question?

Answer 2

sorry it wouldn't post

Answer 3

You have seen this equations before, they are simply the definitions of since and cosine in terms of the sides of the triangles.

Answer 4

Forget all the letters, they just refer to the sides of the triangle. So sine is opposite over hypotenuse. The question just makes it look difficult.

Answer 5

i meant in this subject. this is the first time one of the questions appeared in math

Answer 6

Okay... anyway the step missing is most likely something along the lines of "substitute the values for sine and cosine back into the variables"

Answer 7

i feel like it'd be B. idk why

Answer 8

If \(a=b\) and \(b=c\), then \(a=c\).

what property is that ?

Answer 9

reflexive????

Answer 10

It's like going from one thing to another... transferring the value...

Answer 11

OH! i get it!! its a!;)