SOLUTION: I was hoping someone could check my answers on this problem. Find the values of the 3 trigonometric functions (sin, cos, tan) for x=22.5 I came up with: sinx={{{ sqrt(1-(s

Algebra ->  Trigonometry-basics -> SOLUTION: I was hoping someone could check my answers on this problem. Find the values of the 3 trigonometric functions (sin, cos, tan) for x=22.5 I came up with: sinx={{{ sqrt(1-(s      Log On


   

Question 808645: I was hoping someone could check my answers on this problem.
Find the values of the 3 trigonometric functions (sin, cos, tan) for x=22.5
I came up with:
sinx=+sqrt%281-%28sqrt%28%282%29%29%2F2%29%2F2%29+
cosx=+sqrt%281%2B%28sqrt%28%282%29%29%2F2%29%2F2%29+
tanx=+sin+%28sqrt%28%282%29%29%2F2%29%2F%281%2Bcos+%28sqrt%28%282%29%29%2F2%29%29+
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the values of the 3 trigonometric functions (sin, cos, tan) for x=22.5
sin[22.5] = sin[45/2] = sqrt[(1-cos(45))]/2]
cos[22.5] = sin(45/2) = sqrt[(1+cos(45))/2]
tan[22.5] = tan(45/2) = sqrt[(1-cos(45))/(1+cos(45)]
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Cheers,
Stan H.
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