Write sin(4x) in terms of sin and cos.

4sinx(cosx)^3 - 4cosx(sinx)^3

ZA
Answered by Zyra A. Further Mathematics tutor

3403 Views

See similar Further Mathematics A Level tutors

Related Further Mathematics A Level answers

All answers ▸

solve the equation 4cos^2(x) -15sin(x) = 13


Prove by mathematical induction that 2^(2n-1) + 3^(2n-1) is divisible by 5 for all natural numbers n.


Given that y = arcsinh(x), show that y=ln(x+ sqrt(x^2 + 1) )


It is given that z = 3i(7-i)(i+1). Show that z can be written in the form 24i - k. State the integer k.


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