∫∫ x²/y² dxdy
= ∫(1-->2) dy ∫(1/y-->y) x²/y² dx
= (1/3)∫(1-->2) x³/y² |(1/y-->y) dy
= (1/3)∫(1-->2) (y³ - 1/y³)/y² dy
= (1/3)∫(1-->2) (y - 1/y⁵) dy
= (1/3) · [y²/2 + 1/(4y⁴)] |(1-->2)
= (1/3) · [(2 + 1/64) - (1/2 + 1/4)]
= 27/64
∫∫ x²/y² dxdy
= ∫(1-->2) dy ∫(1/y-->y) x²/y² dx
= (1/3)∫(1-->2) x³/y² |(1/y-->y) dy
= (1/3)∫(1-->2) (y³ - 1/y³)/y² dy
= (1/3)∫(1-->2) (y - 1/y⁵) dy
= (1/3) · [y²/2 + 1/(4y⁴)] |(1-->2)
= (1/3) · [(2 + 1/64) - (1/2 + 1/4)]
= 27/64