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JEE Main202229 Jun 2022Morning ShiftMathematicsTrigonometric EquationsActual

The number of solutions of the equation 2 θ - cos 2 θ + 2 = 0 in R is equal to ______.

Correct answer

0

Step-by-step solution

2 θ - cos 2 θ + 2 = 0 ⇒   2 θ + 2 = cos 2 θ As per the graph drawn there is only one point of intersection, so only one solution of the given equation.

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