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If $y = 500e^7x+600e^{-7}x, $ then $\frac{d^2y}{dx^2}$ is equal to : |
7y 49 y 14 y 29 y |
49 y |
The correct answer is Option (2) → 49 y $y=500e^{7x}+600e^{-7x}$ $y'=7(500e^{7x}-600e^{-7x})$ $y''=7^2(500e^{7x}+600e^{-7x})$ $y''=49y$ |
