Dibantu ya. sm caranya no 38

Jawab

y = 2x + 5
x = -1
x = 2

V = π ₋₁² ∫ (2x+ 5)²  dx

V =  π ₋₁²∫ (4x² + 20x + 25) dx

V = π [ 4/3 x³ + 10 x² + 25x ]²₋₁

V = π [ 4/3 (9)  + 10(3)+ 25(3) ]

V = π (117)