3.5 Trigonometry (A-level only)

Using small angle approximations, show that for small, non-zero values of $x$

\frac{x \sin 3x}{1 - \cos 6x} \approx K

where $K$ is a constant to be determined.

[4]

Using small angle approximations, show that for small, non-zero values of $x$

\frac{x \sin 3x}{1 - \cos 6x} \approx K

where $K$ is a constant to be determined.

[4]

3.5 Trigonometry (A-level only) Questions