1. ## simplify

Simplify the expression: sin2x(1 + cot2x)

2. Hello, superjags99!

Simplify the expression: . $\sin2x(1 + \cot2x)$

We can't do too much with it . . .

We have: . $\sin2x\left(1 + \frac{\cos2x}{\sin2x}\right)$

Multiply: . $(\sin2x)(1) + (\sin2x)\left(\frac{\cos2x}{\sin2x}\right) \;=\; \sin2x + \cos2x$