Let u = x.lnx, , w= x and t = lnx; w' =1 ; t' = 1/x
f(x) = e^(x.lnx) ; f(u) = e^(u); f'(u) = u'.e^(u)
let' find the derivative u' of u
u = w.t
u'= w't + t'w; u' = lnx + x/x = lnx+1
u' = x+1 and f'(u) = ln(x+1).e^(xlnx)
finally the derivative of f(x) =ln(x+1).e^(x.lnx) + 2x
Answer:
A is your answer
Step-by-step explanation:
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Answer: <span>unsubstantiated.
This is, the statement </span><span>"Some of Tucson's residents are blue eyed children" cannot be inferred from the two original statements.
Because the subset of </span><span>"Tucson's residents that have blue eyes" and the subset of "Tucson's residents that are children" might or might not have common elements.</span>
