Differentiate the following functions with respect to x:

x5 ex + x6 log x

Let, y = x5 ex + x6 log x


Let, A = x5 ex and B = x6 log x


y = A + B



We have to find dA/dx first


As we can observe that A is a product of two functions say u and v where,


u = x5 and v = ex


A = uv


As we know that to find the derivative of product of two function we apply product rule of differentiation.


By product rule, we have –


…equation 1


As, u = x5


…equation 2 { }


As, v = ex


…equation 3 { }


from equation 1, we can find dy/dx



{using equation 2 & 3}


Hence,


…..equation 4


Now, we will find dB/dx first


As we can observe that A is a product of two functions say m and n where,


m = x6 and n = log x


B = mn


As we know that to find the derivative of product of two function we apply product rule of differentiation.


By product rule, we have –


…equation 5


As, m = x6


…equation 6 { }


As, v = log x


…equation 7 { }


from equation 5, we can find dy/dx



{using equation 6 & 7}


Hence,


…..equation 8


As,


from equation 4 and 8, we have –



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