JEE Math Practice Question
If y2 + loge (cos2x) = y, $$x \in \left( { - {\pi \over 2},{\pi \over 2}} \right)$$, then :
- A.|y''(0)| = 2
- B.|y'(0)| + |y''(0)| = 3
- C.y''(0) = 0
- D.|y'(0)| + |y"(0)| = 1
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