Math, asked by rfv21, 1 year ago

Please solve..............​

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Answered by qwerty2855
1

Answer:

xdx+ydy+(xdy-ydx)/x sq.+y sq.

d(x sq.+ y sq.)+[dxy(1-1)]/x sq. + y sq.

d(x sq +y sq.)+[ dxy(0)]/ x sq +y sq

d(x sq +y sq)+0

=d(x sq +y sq ) is answer

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