Find the rate of change of the area of c...

Find the rate of change of the area of circle with respect to its radius r when :
(a) r = 3 cm (b) r = 4 cm.

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MODERN PUBLICATION-APPLICATIONS OF DERIVATIVES-NCERT - FILE (Question from NCERT Book) (Exercise 6.1)

Find the rate of change of the area of circle with respect to its radi...
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The rate of change of the area of a circle with respect to its radius ...
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The total revenue in Rupees received from the sale of x units of a pr...
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