Principal solutions of the equation sin ...

Principal solutions of the equation `sin 2x + cos 2x = 0`, where `pi < x < 2pi `

A

(a) `(7pi)/(8),(11pi)/(8)`

B

(b) `(9pi)/(8),(13pi)/(8)`

C

(c) `(11pi)/(8),(15pi)/(8)`

D

(d) `(15pi)/(8),(19pi)/(8)`

Verified by Experts

The correct Answer is:

C

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