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)
Math question: Find the basis of a vector space formed by {(2, -1, 3), (1, 0, 4), (3, 1, 5)} in R³.
+
Math question: What is the area of a triangle with a base of 5 units and a height of 8 units?
+
What is the value of tan(π/6)?
+
New questions in Mathematics
A circle with a 12-inch diameter is folded in half and then folded in half again. What is the area of the resulting shape?
3(4×-1)-2(×+3)=7(×-1)+2
2/3+5/6×1/2
Find the equation of the line perpendicular to −5𝑥−3𝑦+5=0 passing through the point (0,−2)
The average number of babies born at a hospital is 6 per hour. What is the probability that three babies are born during a particular 1 hour period?
Solve : 15/16 divide 12/8 =x/y
It is known that the content of milk that is actually in a bag distributes normally with an average of 900 grams and variance 25 square grams. Suppose that the cost in pesos of a bag of milk is given by 𝐶(𝑥) = { 3800 𝑠𝑖 𝑥 ≤ 890 4500 𝑠𝑖 𝑥 > 890 Find the expected cost.
Convert 5/9 to a decimal
Use linear approximation to estimate the value of the sine of 31o.
X³-27
Solve equations by equalization method X-8=-2y 2x+y=7
Next%C3%B3n%2C+we+are+given+a+series+of+Tri%C3%A1angles+Right%C3%A1angles+%3Cbr%2F%3Ey+in+each+one+of+them+ are+known+2%28two%29+measurements+of+sides.+%3Cbr%2F%3Elet's+determine+all+trigonom%C3%A9tric+ratios.
cube root of 56
17. A loan for $104259 is taken out for 10 years with an annual interest rate of 9.4%, compounded quarterly. What quarterly payment is required to pay the loan off in 10 years? Enter to the nearest cent (two decimals). Do not use $ signs or commas in the answer.
What is the value of f(-3) for the function X squared+5x-8=
A 20,000 kg school bus is moving at 30 km per hour on a straight road. At that moment, it applies the brakes until it comes to a complete stop after 15 seconds. Calculate the acceleration and the force acting on the body.
00 piece jigsaw puzzle. the completed puzzle is 10x10. each piech connects to at least 2 other pieces. i plan to assemble by taking pieces out of box one by one. if i've already taken out 2 pieces that dont directly connect, what is the minimum number of additional pieces that i need to draw to in order to guarentee that the original 2 pieces connect?
A 20-year old hopes to retire by age 65. To help with future expenses, they invest $6 500 today at an interest rate of 6.4% compounded annually. At age 65, what is the difference between the exact accumulated value and the approximate accumulated value (using the Rule of 72)?
simplify w+[6+(-5)]
Question 3 A square has a perimeter given by the algebraic expression 24x – 16. Write the algebraic expression that represents one of its sides.