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y₁ - y₂ = 0
x² + 3x - 10 = 0
(x +5)(x - 2)= 0
x = -5 atau x = 2
batas bawah -5 batas atas = 2
oad garfik garis diatas kurva maka
L = ₋₅²∫ (7-x) - (x² +2x - 3) dx
L = ₋₅∫² 10 - 3x - x² dx
L= [ 10 x - 3/2 x² - 1/3 x³]²₋₅
L= 10( 2+5) - 3/2( 4 - 25) - 1/3 (8 +125)
L = 70 +63/2 - 133/3 = 343/6
cra lain
y1 - y2 = 0
x²+3x -10 = 0
D = 49
L = D√D/(6a²) = 49(7)/(6)= 343/6