Differentiate $y=-3\sin x$y=−3sinx.
Write each line of working as an equation.
Differentiate $y=2-3\cos x$y=2−3cosx.
Differentiate $y=\sin x+3\cos x$y=sinx+3cosx.
Which of the following is the derivative of $\sin7x$sin7x?
Use the derivatives of the standard functions sinx, cos x, tan x, together with constant multiples, sums and composite functions.