MAE101_-_FES5_-_SU_2023_431.webp

7
(Choose 1 answer)
(See picture)
A. (iii)
B. (iv)
C. (ii)
D. (i)
A spherical balloon is being inflated. Find the rate of increase of the surface area S with respect to the radius r when r = 1.4πι2
(1) -8π
(ii) 8π
E. None of these
(iii) 4π
(iv) -4π