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प्रश्न
Choose the correct alternative:
`int "e"^(- 4x) cos "d"x` is
पर्याय
`"e"^(- 4x)/17 [4cos x - sin x] + "c"`
`"e"^(- 4x)/17 [- 4cos x + sin x] + "c"`
`"e"^(- 4x)/17 [4cos x + sin x] + "c"`
`"e"^(- 4x)/17 [- 4cos x - sin x] + "c"`
उत्तर
`"e"^(- 4x)/17 [- 4cos x + sin x] + "c"`
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