UPSC NDA I 2023 Mathematics Solved Paper

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Consider the following for the next three (03) items that follow :
Let I1=
Ï€
∫
0
‌
x
1+cos2x
‌dx
and
I2=
Ï€
∫
0
‌
1
1+sin‌2x
‌dx
[NDA I 2023]
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Question : 81 of 120
 
Marks: +1, -0
What is the value of ‌
I1+I2
I1−I2
?
[NDA I 2023]
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