Skip to content

Course home

1.4 Trigonometry

1.4 Trigonometry

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152
Question 33
a.

Sketch the graph of

y=4cos⁡2x y = 4 \cos 2x y=4cos2x

for 0≤x≤3π20 \le x \le \frac{3\pi}{2}0≤x≤23π​.

[3]
b.

The equation

4cos⁡2x=k 4 \cos 2x = k 4cos2x=k

has exactly two solutions for the interval 0≤x≤3π20 \le x \le \frac{3\pi}{2}0≤x≤23π​. State the possible values of kkk.

[1]
Markscheme

1.4 Trigonometry Questions

  1. A Level
  2. /Maths
  3. /1.4 Trigonometry

84 exam-style questions on CCEA A Level Maths 1.4 Trigonometry, covering 1.4.1 Trigonometry, 1.4.2 Trigonometry, 1.4.3 Trigonometry, 1.4.4 Trigonometry, 1.4.5 Trigonometry, 1.4.6 Trigonometry, and 1.4 Trigonometry. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank