Question

If Sin A = 0.5736, what is the Cos A =

Answer 1

The value of CosA is 0.8191

Explanation:

Given SinA= 0.5736

We know that
`SinA^(2) + CosA^(2) = 1`

Replacing value of SinA,

`(0.5736)^(2) + CosA^(2) = 1`

`(0.3290) + CosA^(2) = 1`

`CosA^(2) = 1-0.3290`

`CosA^(2) = 0.6709`

`CosA = 0.8191`

The value of CosA is 0.8191