Question

Please help me with this answer

Answer 1

`(\pi)/(4),(3\pi)/(4)`

Explanation:

`2\sin^2(\theta)=1`

Divide both sides by 2:

`\sin^2(\theta)=(1)/(2)`

Take the square root of both sides:

`\sin(\theta)=(1)/(√(2))=(√(2))/(2)`

The only two places on the unit circle where the y value of the point is
`(√(2))/(2)` are at:

`(\pi)/(4),(3\pi)/(4)`

Hope this helps!

Answer 2

Explanation:

sin^2x=1/2

so sinx=1/V2=V2/2

x=pi/4