Find the four second partial derivatives of the following function. f(x,y) = In (3x² + 8y² +5)

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Q: 1. Solve the definite integrals. (a) (b) 27 x¹/3 dx -8 1 f = d.² dx 3.x (c)(cos (12)-(+)) de sin dx

A: We have,(1)  (2)   (3)

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