JEE Mains Model Paper 25

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Question : 77 of 90
 
Marks: +1, -0
For any t ∊ R and f a continuous function, let I1 =
1+cos2t
sin2t
xf(x(2 - x)) dx and I2 =
1+cos2t
sin2t
f(x(2 - x)) dx then I1I2 is equal to
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