Question

sin2x(1+tan2x)+cos2x(1+cot2x)+2(2cos2x-1)

Answer 1

You post the unclear expression without any question on, how can we help?
first off: What are we supposed to do? simplify?
second: sin(2x) or \(sin^2x\)
third: is it an equation ? if it is, where is the = sign?

Answer 2

There is no equals sign, so there is nothing to solve. Also, are any of the 2's exponents? If so, indicate with a caret: sin^2(x) means the same thing as sin²x...