Test Index

UPSC NDA I 2015 Mathematics Solved Paper

Show Para Hide Para

For the next two (2) items that follow :
The integral ∫

dx

acosx+bsinx

is of the form

1

r

ln[tan(

x+α

2

)]

[NDA I 2015]

© examsnet.com

Question : 70

Total: 120

What is r equal to ?

a2+b2
√a2+b2
a+b
√a2−b2

Go to Question:

Prev Question

Next Question