Question

Trigonometry Question

Answer 1

if \[\tan \theta= \frac{ 2ab }{ a^{2}-b ^{2} }\] find cos theta

Answer 2

i got 2ab, although im not sure that is the answer

Answer 3

tan = sin/cos

Answer 4

so cosine is a^2 - b^2

Answer 5

thank you!

Answer 6

@shamil98 I don't think that is correct.

What if sin = (a^2 - b^2)/b

then cos = 2a

Answer 7

why divided by b?

Answer 8

im leaning towards the other answer, because i had that first, but just needed to clarify

Answer 9

im just saying that i think that the answer is:

cos theta = (sin theta (a^2 - b^2))/2ab

Answer 10

if you are solving for cos that is , @piglet9 , if he just wants to know what cos value is that is different

Answer 11

im giving the general answer for cos. Your answer could be right but COULD is not good enough in mathematics. It is more likely to be wrong.