If the rate of decrease of (x^(3))/(3)-9...

If the rate of decrease of `(x^(3))/(3)-9x+5` is 7 times the rate of decrease of x then : x=

`pm 4`

`pm 2`

`pm 3`

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MARVEL PUBLICATION-APLICATIONS OF DERIVATIVES-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 12)

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