evaluate using l'Hospital's rule limx→∞ (4+1/x)^-2/x
Use the definition to prove lim x +4 - X -1 2x + 1
x-4 a) lim x-2 X-2 xe* b) lim *-01-et lim (1+x)'* X+00
(1/x) does not exist but that lim cos(1/x) = 0 a) Prove that lim cos x-+0
(1/x) does not exist but that lim cos(1/x) = 0 a) Prove that lim cos x-+0
3 Use the 2-3 definition of lim f(x)=1 to prove that lim x+8 = 14.
(a) Suppose that lim x→c f(x) = L > 0. Prove that there
exists a
δ > 0 such that if 0 < |x − c| < δ, then f(x) >
0.
(b) Use Part (a) and the Heine-Borel Theorem to prove that if
is
continuous on [a, b] and f(x) > 0 for all x ∈ [a, b], then
there
exists an " > 0 such that f(x) ≥ " for all x ∈ [a, b].
= (a) Suppose...
Let f(x)={user user = { x 8. Prove the following 10 a. Prove lim f(x) = 0 b. Prove lim f(x)=1 c. Prove lim f(x) does not exist. 1-2
2. Prove that lim (-1)"+1 0. 72-00 n 2n 3. Prove that lim noon + 1 2. 80 4. Prove that lim n-+v5n 0. -7 9 - in 5. Prove that lim n0 8 + 13n 13
2. Use the ε - δ definition for the limit to prove that limx→-2 (4x - 3) = -113. Use the limit definition of the derivative to find the derivative of the function f(x) = √(4x + 1)4. Find the equation of the tangent line to the curve ve y = (1 + 2x) 10 at the point (-1,1).
Prove that lim ((2x+3)/(x^2 +5))=1/2 as x approaches 2.