Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Solve graphically sin x = cos 2x ;0 º ≤ x ≤ 90 º .
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
Table of values
Plotting these points and then joining them by free hand curve the graph of the two curves is as shown in the fig.
The two curves intersect at P. If PN ⊥ to the x- axis then ON= 30º
Hence the root of the given equation sinx = cos 2x is x = 30º
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