Calculus - max and min.

1

fahadnasir nasir ·2011-12-17 07:18:56

box function!
what is this?!!

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262

Aditya Bhutra ·2011-12-17 22:42:34

@fahad- box functionâ†’Greatest integer function

is the answer 4 ?

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71

Vivek @ Born this Way ·2011-12-17 22:50:20

Aditya? How did you get it? Please tell.

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Aritra Chakrabarti ·2011-12-18 00:08:20

yes the answer is 4. please post the solution.

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fahadnasir nasir ·2011-12-18 00:11:42

Thank Aditya, it is 4 indeed

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Vivek @ Born this Way ·2011-12-18 00:45:56

Would anyone post the solution please?

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1

fahadnasir nasir ·2011-12-18 01:24:53

the best method for solution is to differentiate the function, then put dfdx =0, find it's roots
substitute in f(x), M and m determined
so the the expression is 4

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Vivek @ Born this Way ·2011-12-18 01:38:48

That seemed lengthy to me. So I left it. Any other method?

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fahadnasir nasir ·2011-12-18 02:42:02

not lengthy at all, it is just 5 lines not more

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