Question: Define the variables x and y as x = 5.1 and y = 4.2, then evaluate: (a) 3/4 xy 7x/y2 + xy (b) (xy)2-

Define the variables x and y as x = 5.1 and y = 4.2, then evaluate:
(a) 3/4 xy – 7x/y2 + √xy
(b) (xy)2- x + y/(x-y)l2 + √ x + y/2x - y

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