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anonymous
 one year ago
If f(x)=(1/3)x^3, then find k so that f(k)f(3)=0
anonymous
 one year ago
If f(x)=(1/3)x^3, then find k so that f(k)f(3)=0

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So you plug in K to the equation and 3 to the equation, and subtract?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1when does subtraction equate to zero?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0When both subtracting terms are the same.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1so f(k) has to be equal to f(3), what is k?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So i just plug in a 3 and the answer will be the value of k?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1f(k)  f(3) = 0, implies that f(k) = f(3) yes

amistre64
 one year ago
Best ResponseYou've already chosen the best response.11/3 (k^3)  1/3 (3^3) = 0 1/3 (k^3  3^3) = 0 k^3  3^3 = 0 k^3 = 3^3
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