Show that, for small values of x x\,x measured in radians, the graph of
y=3+6sinx3−8tanx2\displaystyle y = 3 + 6\sin\frac{x}{3} - 8\tan\frac{x}{2}y=3+6sin3x−8tan2x
can be approximated by a straight line, and state the equation of this line.
225 exam-style questions on WJEC A Level Maths 3.5 Trigonometry (A-level only), covering 3.5.1 Trigonometry (A-level only), 3.5.2 Trigonometry (A-level only), 3.5.3 Trigonometry (A-level only), 3.5.4 Trigonometry (A-level only), 3.5.5 Trigonometry (A-level only), 3.5.6 Trigonometry (A-level only), 3.5.7 Trigonometry (A-level only), and 3.5.8 Trigonometry (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.