mohon bantu yg no 30 - 32

30.B
31.A
32.D
Semoga Bener

limit

1. lim(x->∞) (3x² -7x + 3)/(5x³ + 2x²)
= 3x²/5x³
= 3/5x
= 3/0
= ∞

2. limi(x-<∞) √{x²- 4x + 1) - √(x² 4x)
a= p= 1
b = q = - 4
limit = (b-q) /2√a = (-4-(-4)) / 2√1 = 0/2 = 0


3. lim(x->∞)  (3x-2) - √(9x² + 2x +5)
lim(x->∞) (√(3x-2)² - √(9x² + 2x + 5)
lim(x->∞) {√(9x²-12x+4)- √(9x² + 2x + 5)
a= p = √9= 3
b = -12
q = 2

limit = (b-q)/ 2√a
limit = (-12-2)/ 2√9
limit = (-14)/(4)  - 7/2