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प्रश्न
`int "e"^x[((x + 3))/((x + 4)^2)] "d"x`
उत्तर
`int "e"^x[((x + 3))/((x + 4)^2)] "d"x = int "e"^x[(x + 4 - 1)/(x + 4)^2] "d"x`
= `int "e"^x[1/(x + 4) - 1/(x + 4)^2] "d"x`
= `"e"^x(1/(x + 4)) + "c"` .......`[∵ int"e"^x["f"(x) + "f'"(x)] "d"x = "e"^x*"f"(x) + "c"]`
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