3) Show that y" +y = 0, given that y = 2 sin x + 3 cosx

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A: Please refer the attached image for complete solution. THANK YOU.

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Q: 1- Calculate the value of y if: a- y= sin (0.25) + sinh (2). b- y= sinh (15)+cosh (31)

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Q: 1- Calculate the value of y if: a- y= sin (0.25) + sinh (2). b- y= sinh'(15)+cosh (31)

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