SOLUTION: Find the value cot(Cos-1 2/9)

Algebra ->  Trigonometry-basics -> SOLUTION: Find the value cot(Cos-1 2/9)       Log On


   

Question 753301: Find the value cot(Cos-1 2/9)
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find the value cot(Cos-1 2/9)
cosx=2/9
sin%28x%29=sqrt%281-cos%5E2%28x%29%29=sqrt%281-4%2F81%29=sqrt%2877%2F81%29=sqrt%2877%29%2F9
cot%28x%29=cos%28x%29%2Fsin%28x%29=2%2Fsqrt%2877%29