4.01: Tangent and cosine graphs
(a) (i)[1]
The diagram shows part of the graph of \(y=1+\tan\dfrac{x}{2}\), where \(x\) is measured in degrees. Write down its period.
See the official mark scheme below.
(a) (ii)[1]
Write down the equation of the asymptote \(A\).
See the official mark scheme below.
(b)[3]
On the axes, sketch the graph of \(y=3\cos2x+1\) for \(-180^\circ\leqslant x\leqslant180^\circ\).
See the official mark scheme below.
