JEE Math Practice Question
The sum of all values of $$\theta $$ $$ \in $$$$\left( {0,{\pi \over 2}} \right)$$ satisfying sin2 2$$\theta $$ + cos4 2$$\theta $$ = $${3 \over 4}$$ is -
- A.$${{5\pi } \over 4}$$
- B.$${\pi \over 2}$$
- C.$$\pi $$
- D.$${{3\pi } \over 8}$$
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