Question

Can someone please help me wit this?

Answer 1

`\sin\theta=(4)/(5)`

Explanation:

`\displaystyle \cos^2\theta+\sin^2\theta=1\\\\\biggr((6)/(10)\biggr)^2+\sin^2\theta=1\\\\(36)/(100)+\sin^2\theta=1\\\\\sin^2\theta=(64)/(100)\\\\\sin\theta=(8)/(10)=(4)/(5)`