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B
π4+log√2
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C
π4−log√2
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D
π4−log2
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Solution
The correct option is Cπ4−log√2 I=∫π20sinx2sinx2+cosx2dx=2∫π40sinxsinx+cosxdx Let sinx=A(sinx+cosx)+B(cosx−sinx) A - B = 1 and A + B = 0, A=12,B=−12I=2×12×π4−2×12[log(sinx+cosx)]π40=π4−log√2