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If (l,m,n) are the direction cosines of ...

If (l,m,n) are the direction cosines of a line, find the maximum value of the product lmn.

A

`1/8`

B

`1/(2sqrt2)`

C

1

D

`1/(3sqrt3)`

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AAKASH SERIES-MAXIMA & MINIMA-EXERCISE-II
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  2. The curve y=xe^x has

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  14. Maximum value of f(x)=(2+x)^(1//3)(1-x)^(2//3) is

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  15. If f^1(x)=(x-a)^8(x-b)^(11) then

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