Trigonometry - Trigonometric Equations

Trigonometry - Trigonometric Equations

The function \(f\) is defined by \(f:x \rightarrow 30\sin{3x}\cos{3x}\), \(0 \leq x \leq \frac{\pi}{3}\)

  1. Write down an expression for \(f(x)\) in the form \(a\sin{6x}\), where \(a\) is an integer.
  2. Solve \(f(x) = 0\), giving your answers in terms of \(\pi\).

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Answer:(a) \(15\sin6x\) (b) \(x=0,\dfrac\pi6,\dfrac\pi3\)

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