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Mathematics 15 Online
OpenStudy (anonymous):

Show that the function

OpenStudy (anonymous):

OpenStudy (anonymous):

@amistre64 @dan815 @satellite73 @zepdrix

OpenStudy (amistre64):

take its derivative?

OpenStudy (amistre64):

cant say i know what its taking about.

OpenStudy (anonymous):

ln(4)

OpenStudy (amistre64):

ln(4x) - ln(x) is yout thought?

OpenStudy (anonymous):

OpenStudy (anonymous):

i put it into my calculator and i got ln(4)

OpenStudy (amistre64):

well the integration makes sense since 1/t ups to ln(t) then evaluate it at the limits 4x to x

OpenStudy (amistre64):

another way is to take the derivative: d/dx F(x) = d/dx F(4x) - d/dx F(x) d/dx F(x) = 4f(4x) - f(x) since f=1/t d/dx F(x) = 4/4x - 1/x d/dx F(x) = 1/x - 1/x = 0 for all x between 0 adn inf and since the derivative of a constant is 0, yada yada

OpenStudy (amistre64):

other than that, im not sure what they want as proof

OpenStudy (anonymous):

how to i evaluate it at 4x to x

OpenStudy (anonymous):

to=do

OpenStudy (amistre64):

plug it in like any other limit

OpenStudy (anonymous):

can u show me im having a brain fart

OpenStudy (amistre64):

im not going to do a basic integration problem for you how do we do integration with limits?

OpenStudy (anonymous):

never mine i figured it out. thanks for everything :)

OpenStudy (amistre64):

k, good luck

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