Question

For which acute angle'
Cose Caso
1 - Sin 1 Sino
= 4 is true?​

Answer 1

Answer:

Step-by-step explanation:

os theta/1-sin theta+cos theta/1+sin theta

cos theta (1+sin theta)+cos theta(1-sin theta)/1¹-sin²theta

cos theta+cos theta sin theta +cos theta-sin theta cos theta/1-sin² theta

cos theta+cos theta/cos² theta

2cos theta/cos²theta

2/cos theta=4

cos theta=1/2

theta=60° _____________(as cos 60°=1/2)