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Let f(x)=20x+49x2+1∫0(xy+x2y2)f(y)dy where x and y are variables independent of each other. If 1∫0xf(x)dx=40k3, then the value of k is

Answer» Let f(x)=20x+49x2+10(xy+x2y2)f(y)dy where x and y are variables independent of each other. If 10xf(x)dx=40k3, then the value of k is


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