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x+y-ln(x+y)=2x+5 has a vertical tangent ...

`x+y-ln(x+y)=2x+5` has a vertical tangent at the point `(alpha,beta)` then `alpha+beta` is equal to

A

`-1`

B

1

C

2

D

`-2`

Text Solution

Verified by Experts

The correct Answer is:
B
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ARIHANT MATHS-DY / DX AS A RATE MEASURER AND TANGENTS, NORMALS -Exercise (Single Option Correct Type Questions)
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