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$Limits Explained, Definition, Examples, Worksheet, Practice Problems - Calculus$

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Limits Explained, Definition, Examples, Worksheet, Practice Problems - Calculus

In calculus, a limit describes the behavior of a function as its input approaches a specific value, focusing on what the function gets infinitely close to, rather than its value at the exact point itself. Limits are fundamental because they are used to define continuity, derivatives, and integrals, which are the core concepts of calculus. 💡Key aspects of limits: • Approaching a value: Limits look at what value a function "approaches" as the input gets closer and closer to a specific number, from both the left and the right sides. • Not the function's value: The limit doesn't care about the function's actual value at the specific input point; it only cares about the behavior of the function near that point. • Fundamental to calculus: Limits are the building blocks for understanding continuity, the instantaneous rate of change (derivatives), and the area under a curve (integrals). 💡How limits work: • One-Sided Approach: To find a limit, you examine the function's behavior as the input approaches the target value from the left (values smaller than the target) and from the right (values larger than the target). • Existence: A limit only exists if the function approaches the same value from both the left and the right. • Notation: Limits are represented with the notation: lim f(x): means "the limit of the function f(x)". x → a: means "as x approaches a". For example, lim (x → a) f(x) = L is read as "the limit as x approaches a of f(x) equals L" 💡Why they matter: • Defining Continuity: A function is continuous at a point if its limit at that point equals the function's actual value there. • Defining Derivatives: The concept of a limit is used to define the derivative, which measures the instantaneous rate of change of a function. • Defining Integrals: Limits are also used in the definition of definite integrals, which represent the area under a curve. 💡Worksheets are provided in PDF format to further improve your understanding: • Questions Worksheet: https://drive.google.com/file/d/1IfdCaeJTszq4Is48tDhUUxlMd-w9Eltx/view?usp=drive_link • Answers: https://drive.google.com/file/d/11PKq7Z-aEJQOqR_xbqFdAEQdQH4JjKnu/view?usp=drive_link 💡Chapters on What You’ll Learn: 00:00 Why limits? Change at an instant. 01:08 Definition of a limit 01:57 Evaluate limits using graphs 03:27 Evaluate limits numerically using tables 04:39 Algebraic properties of limits 06:11 Evaluating limits using algebra 08:09 Examples on selecting methods for evaluating limits 13:24 Squeeze theorem 17:01 Examples on connecting representations of limits 🔔Don’t forget to Like, Share & Subscribe for more easy-to-follow Calculus tutorials. 🔔Subscribe: https://www.youtube.com/channel/UCJAvCW22EeE_2s2ZlJne7uQ?sub_confirmation=1 _______________________ ⏩Playlist Link: https://www.youtube.com/playlist?list=PLm_WLG6GdV3vHdHSwImjsL4qzNf_9Qwlh _______________________ 💥 Follow us on Social Media 💥 🎵TikTok: https://www.tiktok.com/@drofeng?lang=en 𝕏: https://x.com/DrOfEng 🥊: https://rumble.com/user/DrOfEng

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