Skip to content

Course home

1.5 Trigonometry

1.5 Trigonometry

EasyMediumHard
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465
Question 48
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

1.5 Trigonometry Questions

  1. A Level
  2. /Maths
  3. /1.5 Trigonometry

97 exam-style questions on WJEC A Level Maths 1.5 Trigonometry, covering 1.5.1 Trigonometry, 1.5.2 Trigonometry, 1.5.3 Trigonometry, 1.5.4 Trigonometry, and 1.5.5 Trigonometry. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank