Question

Integral lipat 2
integral 2 bawah 1 integral 1 bawah 0 x^3 + 3x^2 + x dx dy

Answer 1

₁∫² ₀∫¹ (x³ + 3x² + x) dx dy =
= ₁∫² |(1/4 x⁴ + x³ + 1/2 x²)|¹₀ dy
= ₁∫² (1/4 + 1 + 1/2) dy
=₁∫ ² 7/4 dy
= 7/4 y |²₁ = 7/4 (2-1) = 7/4