JEE Mains Model Paper 21

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Question : 87 of 90

Marks: +1, -0

If the primitive of f(x) =

1

3sinx+sin3x

=

1

6

log |

t−1

t+1

| +

1

12

log |

2+t

2−t

| + c then

t = cos x
t = tan
x
2
t = 2 cos x
t = sin x

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