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If x√1+y+y√1+x=0 then the value of (x+1)2d2ydx2+2(x+1)dydx at y=3 is equal to

Answer» If x1+y+y1+x=0 then the value of (x+1)2d2ydx2+2(x+1)dydx at y=3 is equal to


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