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A: topic - derivative of a function

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A: According to guideline I'm solving only Question no. 2 

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Q: Evaluate: S,(3y6 + 8y* – 9y?)dy 2

A: ∫-223y6+8y4-9y2dy

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Q: indicated

A: Please refer to the image below

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A: ∫∫D f(x,y) dx dy = ∫y1y2∫x1x2 f(x,y) dx dy

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A: For finding eigenvalues of Matrix A , find A-λI =0.

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A: