MHT CET 2020 Math Solved Paper

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Question : 7 of 50

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The general solution of x(1+y2)1∕2dx+y(1+x2)1∕2dy=0 is

cos−1x+cos−1y=C
x2+y2=(1+x2)1∕2+(1+y2)1∕2+C
(1+x2)1∕2+(1+y2)1∕2=C
tan−1x−tan−1y=C

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