lim𝑥→∞12+𝑥−3𝑥2𝑥2−4=x→∞lim x 2 −412+x−3x 2 =
Question
lim𝑥→∞12+𝑥−3𝑥2𝑥2−4=x→∞lim x 2 −412+x−3x 2 =
Solution
To solve this limit, we can use the rule of L'Hopital, which states that the limit of a quotient of two functions as x approaches a certain value is equal to the limit of the quotients of their derivatives.
First, let's simplify the expression:
lim (x→∞) (12+x−3x²) / (x²−4)
This can be rewritten as:
lim (x→∞) (3x² + x - 12) / (x² - 4)
Now, let's find the derivatives of the numerator and the denominator:
Derivative of the numerator: 6x + 1 Derivative of the denominator: 2x
Now, we can apply L'Hopital's rule:
lim (x→∞) (6x + 1) / (2x)
This simplifies to:
lim (x→∞) 3 + 1/(2x)
As x approaches infinity, 1/(2x) approaches 0. Therefore, the limit is 3.
Similar Questions
Suppose that h(x)={x2−𝑥+5 if 𝑥<25 if 𝑥=2𝑥3−1 if 𝑥>2Which of the following is equal to 7?I. limx→2−ℎ(𝑥)II. limx→2+ℎ(𝑥)III. lim𝑥→2ℎ(𝑥) Suppose that h(x)= ⎩⎪⎨⎪⎧ x 2 −x+55x 3 −1 if if if x<2x=2x>2 Which of the following is equal to 7?I. x→2−lim h(x)II. x→2+lim h(x)III. x→2lim h(x)
x→∞lim x 2 +3 x 2 x +x 3 =A.2332 B.Does not existC.1D.3223 E.
lim𝑥→∞𝑥4−7𝑥+94+5𝑥+𝑥3=∞, x→∞lim 4+5x+x 3 x 4 −7x+9 =∞, =A.0B.1441 C.1D.Does not existE.4SUBMITarrow_backPREVIOUS
Evaluate the expression limx−→∞ x2ex
limℎ→049+ℎ−7ℎ=h→0lim h49+h −7 =
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.