Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  2. Maths CCEA
  3. Question bank

Trigonometric Functions

EasyMedium
1234567891011121314151617181920212223242526272829303132
Question 16
a.

Use the identity sin⁡2θ+cos⁡2θ=1\sin^2\theta + \cos^2\theta = 1sin2θ+cos2θ=1 to prove that 1+tan⁡2θ=sec⁡2θ1 + \tan^2\theta = \sec^2\theta1+tan2θ=sec2θ.

[2]
b.

Solve, for 0≤θ≤2π0 \leq \theta \leq 2\pi0≤θ≤2π, the equation,

sec⁡2θ+tan⁡2θ=3 \sec^2\theta + \tan^2\theta = 3 sec2θ+tan2θ=3

Give your answers in terms of π\piπ.

[5]

Trigonometric Functions Questions

  1. A Level
  2. /Maths
  3. /Trigonometric Functions