VU 16-Techniques of Differentiation Lecture #16
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Questions and Answers

What is the derivative of the constant function f(x) = 7?

  • Undefined
  • 1
  • 7
  • 0 (correct)

According to Theorem 3.3.2, what is the derivative of $x^4$?

  • $3x^4$
  • $5x^3$
  • $4x^4$
  • $4x^3$ (correct)

If f(x) = 3, what is the derivative f'(x)?

  • 3
  • 1
  • 3x
  • 0 (correct)

What is the derivative of the function g(x) = 2x?

<p>2x (B)</p> Signup and view all the answers

According to Theorem 3.3.1, what is the derivative of the constant function f(x) = -9?

<p>0 (D)</p> Signup and view all the answers

What is the derivative of the function h(x) = 5x^2?

<p>$10x$ (C)</p> Signup and view all the answers

What is the derivative of f(x) + g(x) with respect to x?

<p>f'(x) + g'(x) (C)</p> Signup and view all the answers

According to Theorem 3.3.5, what is the derivative of f(x) * g(x) with respect to x?

<p>f'(x) * g(x) + g'(x) * f(x) (A)</p> Signup and view all the answers

If f and g are differentiable functions at x and g(x) ≠ 0, according to Theorem 3.3.6, what is the derivative of f(x)/g(x) with respect to x?

<p>(g(x)*f'(x) - f(x)*g'(x))/g(x)^2 (B)</p> Signup and view all the answers

According to Theorem 3.3.7, what is the derivative of 1/g(x) with respect to x?

<p>-g'(x)/g(x)^2 (B)</p> Signup and view all the answers

What is the derivative of sin(x) with respect to x?

<p>cos(x) (D)</p> Signup and view all the answers

What is the derivative of cos(x) with respect to x?

<p>-sin(x) (D)</p> Signup and view all the answers

What is the derivative of tan(x) with respect to x?

<p>sec^2(x) (D)</p> Signup and view all the answers

According to Theorem 3.3.8, what is the derivative of x^n with respect to x, where n is any integer?

<p>nx^(n-1) (A)</p> Signup and view all the answers

Which theorem generalizes the Power Rule (Theorem 3.3.1) for all integers (negative or non-negative)?

<p>Theorem 3.3.8 (A)</p> Signup and view all the answers

What does Theorem 3.3.6 state about the differentiability of the quotient function f/g at x when g(x) ≠ 0?

<p>'f/g' is differentiable at x and its derivative is (gf' - fg')/g^2. (C)</p> Signup and view all the answers

What is the derivative of the constant function f(x) = 9?

<p>0 (B)</p> Signup and view all the answers

If f(x) = $x^3$, what is the derivative f'(x)?

<p>$3x^2$ (C)</p> Signup and view all the answers

What is the derivative of the function g(x) = $4x^2$?

<p>$8x$ (A)</p> Signup and view all the answers

According to Theorem 3.3.6, what is the derivative of the function $\frac{1}{h(x)}$ with respect to x, where h(x) ≠ 0?

<p>$-\frac{1}{h^2(x)}$ (B)</p> Signup and view all the answers

What is the derivative of the function $f(x) + g(x)$ with respect to x?

<p>$f'(x) + g'(x)$ (C)</p> Signup and view all the answers

If f(x) = 7, what is the derivative f'(x)?

<p>$0$ (B)</p> Signup and view all the answers

What is the derivative of the sum f(x) + g(x) according to Theorem 3.3.5?

<p>f'(x) + g'(x) (D)</p> Signup and view all the answers

When g(x) ≠ 0, what is the derivative of the quotient f(x)/g(x) according to Theorem 3.3.6?

<p>(g(x)f'(x) - f(x)g'(x)) / [g(x)]^2 (D)</p> Signup and view all the answers

What is the derivative of sin(x) with respect to x?

<p>cos(x) (C)</p> Signup and view all the answers

According to Theorem 3.3.8, what is the derivative of x^n with respect to x, where n is any integer?

<p>nx^(n-1) (B)</p> Signup and view all the answers

What is the derivative of tan(x) with respect to x?

<p>sec^2(x) (B)</p> Signup and view all the answers

What is the derivative of the function g(x) = sin(2x)?

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

According to Theorem 3.3.7, what is the derivative of 1/g(x) with respect to x when g(x) ≠ 0?

<p>-[g'(x)] / [g(x)]^2 (B)</p> Signup and view all the answers

What is the derivative of cos(x) with respect to x?

<p>-sin(x) (C)</p> Signup and view all the answers

According to Theorem 3.3.5, what is the derivative of f(x) * g(x) with respect to x?

<p>[f'(x)]<em>g(x) + f(x)</em>[g'(x)] (A)</p> Signup and view all the answers

What does Theorem 3.3.6 state about the differentiability of the quotient function f/g at x when g(x) ≠ 0?

<p>(f/g)' = (g<em>f' - f</em>g') / [g]^2 (B)</p> Signup and view all the answers

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