COMEDK Exam 2020 Solved Paper

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Question : 161 of 180

Marks: +1, -0

If sec−1(‌

1+x

1−y

)=a, then ‌

dy

dx

is

‌
y+1
x−1
‌
y−1
x+1
‌
x−1
y+1
‌
x−1
y−1

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