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Verified answer
Verified answer
Luas daerah jika hanya dibatasi 2 kurva dan diperolehy1 - y2 = ax^2 + bx + c maka berlaku rumus
Luas = (D√D)/(6a^2) dengan D = b^2 - 4ac
y1 - y2 = g(x) - f(x)
= x^2 - 2x - 8 - (-x^2 + 4x + 12)
= 2x^2 - 6x - 20
D = b^2 - 4ac = (-6)^2 - 4(2)(-20) = 36 + 160 = 196
Luas = (D√D)/(6a^2)
= 196√196 / 6 (2)^2
= 196 . 14 / 24
= 343 / 3
= 114 1/3 satuan luas
^ = pangkat