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प्रश्न
Choose the correct alternative:
The differential equation formed by eliminating a and b from y = aex + be-x is
विकल्प
`("d"^2y)/("d"x^2) - y = 0`
`("d"^2y)/("d"x^2) - ("d"y)/("d"x) = 0`
`("d"^2y)/("d"x^2) = 0`
`("d"^2y)/("d"x^2) - x = 0`
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उत्तर
`("d"^2y)/("d"x^2) - y = 0`
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