tolong sma caranya yg benar

jawab

y1 = 10 - x²
y2 = 2+ x²

y1  = y2
10 - x² = 2 + x²
-2x² = - 8
x² = 4
x = 2 atau x = - 2

V =π ₋₂²∫  (y₁² - y₂²) dx

V = π ₋₂²∫ (10- x²)² - (2 + x²)² dx

V = π ₋₂²∫100 - 20x²  + x⁴ - (4 + 4x² + x⁴) dx

V = π ₋₂²∫ 96- 24x²  dx

V = π [ 96x - 8 x³]²₋₂

V = π [ 96(4) - 8(8+8)]

V = π [ 384 - 128]

V = 256 π