Question

Calculate the limit of the following expression by elementary transformations: lim((sin(sin(x))/x)) if x->0

167

likes
834 views

Answer to a math question Calculate the limit of the following expression by elementary transformations: lim((sin(sin(x))/x)) if x->0

Expert avatar
Jayne
4.4
106 Answers
Um den Grenzwert des Ausdrucks \(\lim_{x \to 0} \frac{\sin(\sin x)}{x}\) zu finden, können wir eine Reihe von Vereinfachungen und Eigenschaften trigonometrischer Funktionen und Grenzwerte verwenden. ### Schritt 1: Erkennen Sie das innere Funktionsverhalten Die innere Funktion ist \(\sin x\), die sich 0 nähert, wenn \(x \to 0\). ### Schritt 2: Vereinfachen Sie den Sinus der Sinusfunktion Wir können die Näherung \(\sin x \approx x\) betrachten, wenn \(x\) nahe 0 liegt. Daher gilt \(\sin(\sin x) \approx \sin x\), insbesondere wenn \(x \to 0\). ### Schritt 3: Wenden Sie die Sinusnäherung erneut an Wenn wir erneut die Näherung \(\sin x \approx x\) verwenden, können wir sagen, dass \(\sin(\sin x) \approx \sin x \approx x\), wenn \(x\) sich 0 nähert. ### Schritt 4: Vereinfachen Sie den Ausdruck Mit \(\sin(\sin x) \approx x\) vereinfacht sich der Ausdruck \(\frac{\sin(\sin x)}{x}\) ungefähr zu \(\frac{x}{x} = 1\), wenn \(x \to 0\). ### Schritt 5: Kleine Winkel berücksichtigen Für sehr kleine Winkel ist die Näherung \(\sin x \approx x\) ziemlich genau. Da \(x\) gegen 0 geht, ist \(\sin x\) ebenfalls sehr klein, und daher kann \(\sin(\sin x)\) sehr genau durch \(x\) angenähert werden. ### Abschluss Daher gilt \(\lim_{x \to 0} \frac{\sin(\sin x)}{x} = 1\). Diese Schlussfolgerung nutzt die grundlegende Eigenschaft der Sinusfunktion um Null herum und die Tatsache, dass für kleine \(x\) \(\sin x \approx x\) sehr genau gilt. Dies sind elementare Transformationen und Näherungen, die in der Infinitesimalrechnung häufig verwendet werden, um Grenzwerte mit trigonometrischen Funktionen zu ermitteln.

Frequently asked questions (FAQs)
What is the median of a set containing 5 elements if the first term is 3 and each consecutive term is obtained by adding 2 to the previous term?
+
What is the time required for a car traveling at 60 mph to cover a distance of 120 miles?
+
What is the equation of an ellipse with its center at (h, k), major axis of length 2a and minor axis of length 2b?
+
New questions in Mathematics
A=m/2-t isolate t
1 + 1
-6n+5=-13
A normally distributed population has a mean of 118 with a standard deviation of 18. What score separates the lowest 72% of the distribution from the rest of the scores?
Let X be a discrete random variable with range {1, 3, 5} and whose probability function is f(x) = P(X = x). If it is known that P(X = 1) = 0.1 and P(X = 3) = 0.3. What is the value of P(X = 5)?
By differentiating the function f(x)=(x³−6x)⁷ we will obtain
Suppose 50% of the doctors and hospital are surgeons if a sample of 576 doctors is selected what is the probability that the sample proportion of surgeons will be greater than 55% round your answer to four decimal places
(2x+5)^3+(x-3)(x+3)
7/6-(-1/9)
2x+4x=
find f(x) for f'(x)=3x+7
suppose random variable x follows poisson distribution with expected value 3. what is variance of x?
A storage maker price is $2.50 per square feet. Find the price of a custom shed 4 yards long, and 5yards wide and 8 feet tall
1. A capital of $3,831 was lent, and it has produced interest of $840 from 05-12-2022 to 1-12-2023. At what annual simple interest rate was the capital lent?
-1%2F2x-4%3D18
For what values of m is point P (m, 1 - 2m) in the 2⁰ quadrant?
Find the zero of the linear function 8x + 24 = 0
X^X =49 X=?
A group of 17 people spent 9 days on vacation and spent R$776.34 on barbecue meat and the bill needs to be divided as follows: 6 people stayed for 9 days, 7 people stayed for 4 days, and 2 people stayed for 5 days and 2 people stayed 3 days, how much does each group have to pay for the days they stayed?
The perimeter of a rectangular rug is 42 feet. The width is 9 feet. What is the length?