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Calculus1 16 Online
OpenStudy (anonymous):

Found three positive numbers whose sum is 100 and the product is the maximum.

OpenStudy (rsadhvika):

33 33 34

OpenStudy (anonymous):

how to find this number?

OpenStudy (rsadhvika):

a square has maximum area of all rectangles

OpenStudy (rsadhvika):

a cube has maximum volume of all prisms

OpenStudy (rsadhvika):

so when you have equal dimensions, u wil get maximum

OpenStudy (rsadhvika):

100/3 = 33.33333 so ive taken two numbers to be 33, 33 and the third number to be 34

OpenStudy (rsadhvika):

oh you've posted this in calculus, then, lets think it in calculus and try to solve...

OpenStudy (rsadhvika):

@dan815 @Jhannybean

OpenStudy (anonymous):

Let \[ f(x,y)= x y ( 100- x +y) \] Use gradient to find that f has a maximum at \[ x=y= \frac {100}3 \]

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