Verified answer

x = 4 - y²

4 - y² = 0

y² = 4

y1 = -2

y2 = 2

f(y) = 4 - y²

integral

F(y) = 4y - y³/3

F(2) = 8 - 8/3

área

A = 2F(2) = 16 - 16/3 = (48 - 16)/3 = 32/3

pronto

2...............................2

∫〖4-y²〗dy = 4y -y³/3 │= 8 - 8/3 = 16/3 = 5,3333...

0...............................0