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

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

ZA

Related Further Mathematics A Level answers

All answers ▸

How do you plot a complex number in an Argand diagram?


Find the four roots of the equation z^4 = + 8(sqrt(3) + i), in the form z = r*e^(i*theta). Draw the roots on an argand diagram.


What's the best way to solve projectile problems in Mechanics?


By use of matrices uniquely solve the following system of equations, justifying each step of the calculation: 3x-7y=6, 5y-2x=-3.