What is the integral of (cos(x))^2?

cos(2x) = 2cos2(x)-1 by the double angle formula.

Rearrange to give cos2(x) = (cos(2x)+1)/2

Integrating this gives sin(2x)/4 + 1/4x + c 

MC
Answered by Max C. Maths tutor

5284 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Solve the following simultaneous equations y + 4x + 1 = 0, y^2 + 5x^2 + 2x = 0


Solve 4x/(x+1) - 3/(2x+1) = 1


Integrate the function x(2x+5)^0.5


Using the trigonometric identity for tan(A + B), prove that tan(3x)=(3tan(x)-tan^3(x))/(1-3tan^2(x))


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences