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प्रश्न
Choose the correct alternative:
`int "e"^(- 7x) sin 5x "d"x` is
विकल्प
`"e"^(- 7x)/74 [- 7 sin 5x - 5 cos 5x] + "c"`
`"e"^(- 7x)/74 [7 sin 5x + 5 cos 5x] + "c"`
`"e"^(- 7x)/74 [7 sin 5x - 5 cos 5x] + "c"`
`"e"^(- 7x)/74 [- 7 sin 5x + 5 cos 5x] + "c"`
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उत्तर
`"e"^(- 7x)/74 [- 7 sin 5x - 5 cos 5x] + "c"`
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