Question

Given sinx=0.5 , what is cosx ?

Enter your answer as a decimal in the box. Round only your final answer to the nearest hundredth.

Answer 1

The value of cosx is:

0.87

Explanation:

sinx=0.5

We have to find cosx

We know that

`cos^2x=1-sin^2x`

`cos^2x=1-(0.5)^2\\\\cos^2x=0.75\\\\cosx=0.87`

Hence, The value of cosx is:

0.87