State the trigonometric identities for sin2x, cos2x and tan2x

sin2x = 2sinxcosx cos2x = cos^2(x) - sin^2(x) tan2x = (2tanx)/(1-tan^2(x))

JS
Answered by James S. Maths tutor

20762 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

How can I derive an equation to find the sum of an arithmetic sequence?


How do I use the product rule for differentiation?


A curve is defined by the parametric equations: X = 3 – 4t , y = 1 + (2/t) Find (dy/dx) in terms of t.


Show, by first principles, that the differential of x^2 is 2x.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning