Recent content by 3lliott

  1. 3

    Solve Hard C3 Question: Get Rid of cosec²x - cot²x

    mis-post, oops! Edit: Well, as I'm here... cosec^2\theta - cot^2\theta = 1 cosec^2\theta + cot^2\theta = -1 Well, that's the RHS... -cot^4\theta = -cot^2\theta \times cot^2\theta\newline = (1 - cosec^2\theta)(cosec^2\theta - 1)\newline = -1 + cosec^2\theta - cosec^4\theta -...