RD Sharma Solutions Class 12 Indefinite Integrals Exercise 19.27

RD Sharma Solutions Class 12 Chapter 19 Exercise 19.27

RD Sharma Class 12 Solutions Chapter 19 Ex 19.27 PDF Free Download

Exercise 19.27


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The ratio of radii of two cylinders is 1:3 and their heights are in the ratio 2 : 3. The ratio of their curved surface area is: