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`int ((4-5cosx)/(sin^(2)x))dx` का मान ज्ञात कीजिए ।

Answer» `int ((4-5cosx)/(sin^(2)x))dx=int((4)/(sin^(2)x)-(5cosx)/(sin^(2)x))dx`
`=int(4cosec^(2)x-5cosecx cotx)dx`
`=4int(cosec^(2)xdx-5intcosecx cotx dx`
`=4(-cotx)-5(-cosecx)+c`
`=-4cotx+5cosecx+c`


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