Question

Can you please explain how you solve these questions? ​

Answer 1

Answers:

10)
`30\°`

11)
`30\°`

12)
`45\°`

Explanation:

In this problem we have to find the angle of each expression:

10)
`cos(x)=(√(3))/(2)`

`x=cos^(-1)((√(3))/(2))`

`x=30\°`

11)
`sin(x)=(1)/(2)`

`x=sin^(-1)((1)/(2))`

`x=30\°`

12)
`tan(x)=1`

`x=tan^(-1)(1)`

`x=45\°`