Question

When working in decimal radians, how do you find sin^-1(-1/6)?

Answer 1

`-0.167448079\ \text{rad}`

Explanation:

For small value of angle

`\sin^{-1}(-1/6)\approx -1/6=-0.167\ \text{rad}`

Or
`\sin^{-1}(-1/6)`

`=-\sin^{-1}(1/6)`

`=-0.167448079\ \text{rad}`