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Question

Question: The equation \(\frac{\pi}{2}\) has...

The equation π2\frac{\pi}{2} has

A

One solution

B

Two solution

C

Infinite number of solution

D

No solution

Answer

No solution

Explanation

Solution

No solution as cos⁡θ=−12\cos\theta = - \frac{1}{2}and both of them do not attain their maximum value for the same angle.

Trick: Maximum value of x+y=−1,x−y=−1x + y = - 1,x - y = - 1Hence there is no x satisfying this equation.