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Lesson on trigonometric equations

Answer Text:
In trigonometric equations, there are an infinite number of roots. We therefore specify the range of values for which the roots of a trigonometric equation are required.
Example 1
Solve the following trigonometric equation: Sin 2x = cos x, for #0 le x le 360^0#
Example 2
Solve the following trigonometric equation: Tan 3x = 2, for #0 le x le 360^0#