Derivatives Of Standard Functions
Overview
Differentiation measures how fast a quantity is changing at an instant, and almost all of it rests on a short list of standard derivatives. Once you know how to differentiate powers, the basic trigonometric functions, the exponential and the logarithm, the chain rule lets you handle the combinations that follow.
In this lesson you will learn the derivative notation, the rule \(\frac{d}{dx}x^n=nx^{n-1}\), the derivatives of \(\sin x\), \(\cos x\), \(e^x\) and \(\ln x\), and how the chain rule differentiates a composite. Angles for trigonometric derivatives are always measured in radians.
Objectives
- Understand the idea of a derived function and use the notation f'(x), f''(x), dy/dx and the second derivative d2y/dx2.
- Know and use the derivatives of x to the power n (for any rational n), sin x, cos x, tan x, e to the power x and ln x, including the chain rule for composite functions.
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Derivatives Of Standard Functions. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- What is d/dx of x^5? A. 5x^4 B. x^4 C. 5x^6 D. 4x^5 Answer: A
- What is the derivative of cos x? A. sin x B. -sin x C. cos x D. -cos x Answer: B
- What is the derivative of e^x? A. x e^{x-1} B. e^x C. e^{x}/x D. 1 Answer: B
- Using the chain rule, d/dx of (2x + 1)^4 is: A. 4(2x + 1)^3 B. 8(2x + 1)^3 C. (2x + 1)^3 D. 8(2x + 1)^4 Answer: B
- With x in radians, d/dx of sin(3x) is: A. cos(3x) B. 3 cos(3x) C. -3 cos(3x) D. 3 sin(3x) Answer: B
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
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