Trigonometry

Trigonometry

Secondary 4

For \(0^\circ\le x<360^\circ\), let
\[\mathrm{F}(x)=(3\sin x+4\cos x)^2-6(3\sin x+4\cos x)+11.\]

  1. Find the exact minimum and maximum values of \(\mathrm{F}(x)\).

  2. Find all values of \(x\) at which each occurs.

Similar questions are unavailable for this question.
Answer:Minimum \(2\) at \(90^\circ,343.7^\circ\); maximum \(66\) at \(216.9^\circ\).

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