Question

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$\huge\red{Differentiation}$

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100 POINTS WITH VERIFICATION MARK AND BRAINLIST ​

Answer 1

Answer:

hope you can understand

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Answer 2

Step-by-step explanation:

$y = {e}^{ - 2} (a \: \cos \: x + b \: \sin \: x) \\ {y}^{1} = {e}^{ - x} (a \: \cos + b \: \sin \: x) + {e}^{ - 2} ( - a \: \sin \: x + b \: \cos \: x) \\ {y}^{11} = { - {y}^{1} } + {e}^{ - x} ( - a \: \cos \: x - b \: \sin \: x) \\ {y}^{11} = { - y}^{1} - y - y - {y}^{1} \\ {y}^{11} = {2y}^{1} - 2y \\ {y}^{11} + 2y + 2y = 0$