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Find the particular solution of the diff...

Find the particular solution of the differential equation `(1+x^(2))sec^(2)ydy+2x tany dx=0`, it is given that at `x=1`, `y=pi//4`.

A

`(1+x^(2))tany=0`

B

`(1+x^(2))tany=2`

C

`(1+x^(2))coty=0`

D

`(1+y^(2))tanx=1`

Text Solution

Verified by Experts

The correct Answer is:
B
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