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Derivatives and Differentiation Quiz
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Derivatives and Differentiation Quiz

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Questions and Answers

What is the derivative of √8 + x√x?

  • 4√x + 1/√x
  • 3√x + √x
  • 2√x + 1/√x (correct)
  • 1/2√x + 1/2√x
  • For y = (x + 1)(x - 2), what is the correct derivative?

  • 2x + 3
  • 3x² + 2x - 2 (correct)
  • 3x² + 2x + 2
  • 3x² - 2x + 2
  • If ax + by = ab, what is the correct expression for dy/dx?

  • by (correct)
  • 2by
  • by (correct)
  • bx
  • What is the derivative of tan x with respect to cot x?

    <p>sec x csc x</p> Signup and view all the answers

    If y = tan⁻¹(cos 2x), what is dy/dx?

    <p>-cos 2x</p> Signup and view all the answers

    What is the nth derivative of $2e^{x}$?

    <p>$2ne^{x}$</p> Signup and view all the answers

    If $xy=k^{2}$, what is y"?

    <p>$\frac{2k^{2}}{x}$</p> Signup and view all the answers

    What is the 3rd order derivative of $2^{x}$?

    <p>$(\ln3)^{2}e^{x\ln2}$</p> Signup and view all the answers

    For $f(x)=Ax+B\cos(x)$, what is the 2nd order derivative?

    <p>None of these</p> Signup and view all the answers

    What is the nth derivative of $2e^{x}$?

    <p>$2ne^{x}$</p> Signup and view all the answers

    If $xy=k^{2}$, what is the second derivative of y with respect to x?

    <p>$\frac{2k^{2}}{x^{3}}$</p> Signup and view all the answers

    What is the 3rd order derivative of $2^{x}$?

    <p>$(\ln3)^{2}e^{x\ln2}$</p> Signup and view all the answers

    If $S$ represents the distance covered by a car, what does $\frac{d^{2}S}{dt^{2}}$ represent?

    <p>Acceleration</p> Signup and view all the answers

    What is the nth derivative of $2e^{x}$?

    <p>$2ne^{x}$</p> Signup and view all the answers

    In the function $f(x)=Ax+B\cos(x)$, what is the 2nd order derivative?

    <p>$(\ln 2)^3e^{x\ln 2}$</p> Signup and view all the answers

    If $y=tan^{-1}x$, what is $y''(1)$?

    <p>$\frac{-1}{4}$</p> Signup and view all the answers

    What does $y=x-\frac{x^3}{3!}+\frac{x^5}{5!}-...$ represent in terms of series?

    <p>$\sin x$</p> Signup and view all the answers

    If $S$ represents the distance covered by a car, what does $\frac{d^2S}{dt^2}$ represent?

    <p>Deceleration</p> Signup and view all the answers

    What is the third order derivative of $2^{x}$?

    <p>$(\ln 3)^2e^{x\ln 2}$</p> Signup and view all the answers

    Study Notes

    Differentiation

    • The derivative of √8+ xvx is not provided.
    • If y=(x+1)(x-2), then y' = 2x - 1.

    Second Derivative

    • If y=tan⁻¹x, then y''(1) = -1/2.

    Higher Order Derivatives and Applications

    • If S is the distance covered by a car, then d²S/dt² is acceleration.

    nth Derivative

    • The nth derivative of 2eˣ is 2neˣ.

    Implicit Differentiation

    • If xy=k², then y" = 2k²/x³.

    Applications of Derivatives

    • A function f(x) is said to be a decreasing function when x₁ > x₂ implies f(x₁) ≤ f(x₂).

    Maclaurin Series

    • The Maclaurin series of sinx is x - x³/3! + x⁵/5! - ...

    Derivatives of Trigonometric Functions

    • The derivative of tanx is sec²x.
    • The derivative of tanh ax is asechax.
    • The derivative of coth⁻¹(2x) is 2/(1 - 4x²).

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    Quiz Team

    Description

    Test your knowledge of derivatives and differentiation with this quiz. Select the correct options related to finding derivatives of various functions and expressions. Questions include product rule, chain rule, and trigonometric functions.

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