Trigonometric and Exponential Graphs

EasyMedium
12345678910111213
Question 5
Medium

Here is a sketch of the curve y=cos⁡x∘y = \cos x^\circy=cosx∘ for 0≤x≤3600 \leq x \leq 3600≤x≤360

A graph of the cosine function y = cos x degrees for 0 ≤ x ≤ 360.

Use the graph to find estimates of the solutions, in the interval 0≤x≤3600 \leq x \leq 3600≤x≤360, of the equation:

i.

cos⁡(x)=−0.2\cos(x) = -0.2cos(x)=−0.2

[2]
ii.

10cos⁡(x)=110 \cos(x) = 110cos(x)=1

[2]

Trigonometric and Exponential Graphs Questions

  1. GCSE
  2. /Maths
  3. /Trigonometric and Exponential Graphs