SOLUTION: Use your calculator to check that a) cos 0.8 = - cos ( π - 0.8) b) sin 1 = cos(π/2 - 1) Can you please help me ? Thanks so much in advance:)

Algebra ->  Trigonometry-basics -> SOLUTION: Use your calculator to check that a) cos 0.8 = - cos ( π - 0.8) b) sin 1 = cos(π/2 - 1) Can you please help me ? Thanks so much in advance:)       Log On


   

Question 878810: Use your calculator to check that
a) cos 0.8 = - cos ( π - 0.8)
b) sin 1 = cos(π/2 - 1)
Can you please help me ? Thanks so much in advance:)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
It seems you're in a trig class, but you have no clue.
Get out of it.