1.

`int_(0)^(2pi)sin^(5)((x)/(4))dx` किसके बराबर है ?A. `8//15`B. `16//15`C. `32//15`D. 0

Answer» Correct Answer - C
दिया है ,`int_(0)^(2pi)sin^(5)((x)/(4))dx`
`(x)/(4)=trArrdx=4dt` रखने पर,
`=int_(0)^(pi/2)sin^(5)t*4dt=4int_(0)^(pi/2)sin^(5)t dt`
`=(4*4*2)/(5*3)=(32)/(15)` [वॉली सूत्र से]


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