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For the curve y=5x-2x^(3), if x increase...

For the curve `y=5x-2x^(3)`, if x increases at the rate of 2units/sec, then at x=3 the slope of the curve is changing at ___

A

`-"78 units/s"`

B

`-"72 units/s"`

C

`-"36 units/s"`

D

`-"18 units/s"`

Text Solution

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The correct Answer is:
B
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DISHA PUBLICATION-APPLICATION OF DERIVATIVES -EXERCISE - 1
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