Trigonometric graphs and identitiesEdexcel A-Level Maths: Mind map

Exam questions on Trigonometric graphs and identities

1. The curve $C$ has equation $y=\sin(x+30^\circ)$, where $x$ is in degrees and $0\le x\le360$.
   State the coordinates of the maximum point of $C$ in the given interval.2 marks
2. The function $f$ is defined by $f(x)=\tan2x$, where $x$ is measured in degrees.
   Describe fully the single transformation that maps the curve $y=\tan x$ onto the curve $y=\tan2x$.2 marks
3. The angle $\theta$ is acute and $\sin\theta=\frac35$.
   Find the exact values of $\cos\theta$ and $\tan\theta$.3 marks