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The slope of the line normal to the curv...

The slope of the line normal to the curve `f(x)=2cos4x" at "x=pi/12` is

A

`-4sqrt3`

B

-4

C

`sqrt3/12`

D

`4sqrt3`

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SURA PUBLICATION-APPLICATIONS OF DIFFERENTIAL CALCULUS-EXERCISE 7.10
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  15. The maximum value of the function x^(2)e^(-2x),xgt0 is

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