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## Homework Statement

sin

**Ө**+ cos

**Ө**=4/3 ,, then sin2

**Ө**= .... ?

## Homework Equations

sin2

**Ө**= 2cos

**Өsin**

**Ө**or any trigonometry functions...

## The Attempt at a Solution

I tried to write sin

**Ө**+ cos

**Ө**=4/3 in the form of cos

**but couldn't..**

**ӨsinӨ**is there a possible way to solve it ?