Question: For problems 7 and 8, use Chain Rule to Calculate the partial derivative. Express the solution in terms of the independent variables.7. Find delfdels and

For problems 7 and 8, use Chain Rule to Calculate the partial derivative. Express the solution in terms of the independent variables.7. Find delfdels and delfdelr given f(x,y,z)=xyz3,x=3rs,y=s2,z=r2delfdels=delfdelx*delxdelsdelfdely*delydelsdelfdelz*delzdels=y*3rt2xFind delfdel and delfdelr given f(x,y,z)=xy-z2,x=rcos,y=cos2,z=r

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