SOLUTION: Would you be able to please help me? I would like to know the steps for figuring out this problem. Simplify. 1minus cos square (theta)

Algebra ->  Trigonometry-basics -> SOLUTION: Would you be able to please help me? I would like to know the steps for figuring out this problem. Simplify. 1minus cos square (theta)      Log On


   

Question 989988: Would you be able to please help me? I would like to know the steps for figuring out this problem. Simplify.
1minus cos square (theta)
Answer by ikleyn(52821) About Me  (Show Source):
You can put this solution on YOUR website!
.
Hello,

if you are talking about  1+-+cos%5E2%28theta%29,  then it is  sin%5E2%28theta%29.

Simply because sin%5E2%28theta%29 + cos%5E2%28theta%29 = 1.