JEE Mains Model Paper 21

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Question : 79 of 90

Marks: +1, -0

Let Δ (x) =

|

cos2x	cosxsinx	−sinx
cosxsinx	sin2x	cosx
sinx	−cosx	0

|

then

π∕2

∫

0

(Δ(x) + Δ2(x)) dx equal to

π
3
π
2
2π
3π
2

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