Evaluate: /x?cos(2x)dx 2x2sin(2x) + 2xcos(2x) – sin(2 x) А + C 4 2x2sin(2x) – 2xcos(2x) – sin(2x) +C 4 2x²sin(2x) – 2xcos(2x)+ sin(2 x) + C 4 None of the above 2x?sin(2x) + 2xcos(2x)+ sin(2x) 4

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A: 5x2+y2=1 --->1x2+2y2=11x2=11-2y2 --->2Substitute 2 in 1511-2y2+y2=155-10y2+y2=19y2=54y2=6y=±6

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