Mathematics

Mathematics

Problem

Which of the following is the correct identity for tan⁡2θ\tan 2\theta? a) 2tan⁡θ1+tan⁡2θ\dfrac{2\tan\theta}{1+\tan^{2}\theta} b) 1−tan⁡2θ2tan⁡θ\dfrac{1-\tan^{2}\theta}{2\tan\theta} c) 2tan⁡θ1−tan⁡2θ\dfrac{2\tan\theta}{1-\tan^{2}\theta} d) 2tan⁡θ (1−tan⁡2θ)2\tan\theta\,(1-\tan^{2}\theta)

Browse the problem library