SOLUTION: Evaluate cos^2 (2.85) + sin^2 (2.85) Can you please help me ? Thanks so much in advance:)

Algebra ->  Trigonometry-basics -> SOLUTION: Evaluate cos^2 (2.85) + sin^2 (2.85) Can you please help me ? Thanks so much in advance:)      Log On


   

Question 857795: Evaluate
cos^2 (2.85) + sin^2 (2.85)
Can you please help me ? Thanks so much in advance:)
Found 2 solutions by Fombitz, Alan3354:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
That's an identity.
%28sin%28x%29%29%5E2%2B%28cos%28x%29%29%5E2=1
for any x.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
cos^2 + sin^2 = 1 for all angles