Asked by Anonymous
A differentiable function called f(x) achieves its maximum when x=0. Which of the following must then be true?
1. The function p(x) = xf(x) has a critical point when x = 0.
2. The function m(x) = (f(x))^2 has its maximum at x = 0.
3. The function j(x) = f(x^2) has its maximum at x = 0.
1. The function p(x) = xf(x) has a critical point when x = 0.
2. The function m(x) = (f(x))^2 has its maximum at x = 0.
3. The function j(x) = f(x^2) has its maximum at x = 0.
Answers
Answered by
Steve
#1. No
consider f(x) = e^(-x^2)
#2. No
consider f(x) = -x^2
See what you can do with #3.
consider f(x) = e^(-x^2)
#2. No
consider f(x) = -x^2
See what you can do with #3.
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