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प्रश्न
Choose the correct alternative:
`int "e"^x/("e"^x + 1) "d"x` is
विकल्प
`log|"e"^x/("e"^x + 1)| + "c"`
`log|("e"^x + 1)/"e"| + "c"`
`log|"e"^x| + "c"`
`log|"e"^x + 1| + "c"`
उत्तर
`log|"e"^x + 1| + "c"`
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