1 a Find dV in term of dr What is dV if dr 0 1cm when r 10 cm b Express the radius r in terms of the volume V Find dr in terms of dv Find dr if dV 1 cm when V 36 x cm Ans b r 2 v dr 2 vdv dr 2 36 0 190 2 a Find dS in term of dr What is dS if dr 0 1cm when r 10 cm b Express the radius r in terms of the surface area S Find dr in terms of ds Find dS if dV 1 cm when V 36 cm Ans a dS 8 r dr ds 8 cm 3 a Find volume V in terms of the surface S Find dV in term of ds What is dV if when S 16 cm and that dS 1 cm b Find the surface S in terms of the volume V Find dS in terms of dV Find dS if V 367 cm and that dV cm Ans b S 4x 3 3 2 3 2 3 ds 4m 3 v dv ds 4n 3 36n 1 3 Also be able to explain what each result means