Get premium membership and access revision papers with marking schemes, video lessons and live classes.

Processing. Please wait.

Graphical solutions of trigonometric equations online video lesson

Answer Text:
The trigonometric equations can be solved using graphs and the solution is taken as the values of x at the points of intersection of the graphs.
Example:
Draw the graph of y = 2 sin x for #0^0 ≤ x ≤ 360^0# .On the same axes, draw the graph of y = cos x. Hence solve the equation 2sin x – cos x = 0.