This question is taken from RS Aggarwal book, chapter – Trigonometry, topic – trigonometric identities and we have to prove that (sinθ-2sin³θ) = (2cos³θ-cosθ)tanθ
Kindly give me a detailed solution of this question using basic trigonometric formulas…
RS Aggarwal, class 10, chapter 13A, question no 37.
Hope it helps you