∫1cos2xtanxdx=?

A   tanx ln(cos2x) +c 
B    2tnax=c
C 23 (tanx)3/2 +c  
D   2tanx +c

Correct Answer:   2tanx +c

Bissoy MCQ

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     ∫1cos2xtanxdx
∫1cos2xtanxdx=?

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