IB Math HL Trigonometry Test 7 2018 P1 Q8

IB Math HL Trigonometry Test 7 2018 P1 Q8

IB Year 6 | Grade 12
6 marks
  1. Sketch \(f(x)=\cos2x\) for \(0\le x\le\pi\).[2]
  2. On a separate diagram sketch \(g(x)=2\sec2x\) on the same interval, stating the coordinates of the local maximum and the equations of all asymptotes.[4]

Solution:

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Answer:(b) Local maximum \((\frac{\pi}{2},-2)\); asymptotes \(x=\frac{\pi}{4},\frac{3\pi}{4}\).

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