KEAM 2018 Math Paper

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Question : 118 of 120

Marks: +1, -0

If

Δ(x)=|

1	cos x	1−cos x
1+sin x	cos x	1+sin x−cos x
sin x	sin x	1

|,

then

π

2

∫

0

Δ(x)‌dx=

−1
2
1
2
1
-1
0

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