UPSC NDA II 2015 Mathematics Solved Paper

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For the next two(2) items that follow:
Consider the integrals
A=
Ï€
∫
0
‌
sin‌x‌d‌x
sin‌x+cos‌x
and B=
Ï€
∫
0
‌
sin‌x‌d‌x
sin‌x−cos‌x
[NDA II 2015]
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Question : 98 of 120
 
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What is the value of B?
[NDA II 2015]
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