Why do the trig addition formulae work?

Try differentiating:sin(x)cos(z-x)+cos(x)sin(z-x)with respect to x and for constant z, then simply the derivative you deduce, then integrate throughout the simplified equation. See what happens!

Answered by Maths tutor

2781 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find the intersection point of the line 2y=x+3 with the ellipse y^2+2x^2=3


evaluate the integral of lnx


Given y = 2x(x^2 – 1)^5, show that dy/dx = g(x)(x^2 – 1)^4 where g(x) is a function to be determined.


Find the stationary point of the curve y = -2x^2 + 4x.


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences