SOLUTION: Find the exact value of the expression. Cos[sin^-1 1/3 -tan^-1 1/2] Please show me step by step. Thanks.

Algebra ->  Trigonometry-basics -> SOLUTION: Find the exact value of the expression. Cos[sin^-1 1/3 -tan^-1 1/2] Please show me step by step. Thanks.      Log On


   

Question 1067792: Find the exact value of the expression.
Cos[sin^-1 1/3 -tan^-1 1/2]
Please show me step by step. Thanks.
Answer by ikleyn(52848) About Me  (Show Source):
You can put this solution on YOUR website!
.
I have difficulties reading your formula.

Is it 

cos%28arccos%281%2F3%29+-+acrctan%281%2F2%29%29  ??


Please confirm.

Again, cos ( arccos(1/3) - acrctan(1/2) ) ??