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Fundamentals of Differentiation

Question 1
college-boardCalculus AB/BCAPExam Style
1 mark

For a twice-differentiable function h(x)=x4+kxe3xh(x) = \frac{x^4 + kx}{e^{3x}}, where kk is a constant, determine the value of kk if it's known that (h)1(0)(h')^{-1}(0) exists and has a horizontal tangent line at some point (a,b)(a, b).

Question 2
college-boardCalculus AB/BCAPExam Style
1 mark

Assuming j(x)=vxwxj(x)=\frac{vx}{w-x}—where v,wv,w are constants such that w0w\neq 0—calculate dwdv\frac{dw}{dv} if djdx=wv2\frac{dj}{dx}=\frac{w}{v^2} at x=wex=\frac{w}{e}.

Question 3
college-boardCalculus AB/BCAPExam Style
1 mark

When differentiating the function f(c)=tan(c)sin(c)f(c)=\frac{\tan(c)}{\sin(c)}, what is the result using the Quotient Rule?

Question 4
college-boardCalculus AB/BCAPExam Style
1 mark

What is the derivative of h(x)=x32x+1h(x) = \frac{x^3}{2x + 1}?

Question 5
college-boardCalculus AB/BCAPExam Style
1 mark

Find the derivative of s(x)=x21x3+x2+x+1s(x) = \frac{x^2 - 1}{x^3 + x^2 + x + 1}.

Question 6
college-boardCalculus AB/BCAPExam Style
1 mark

If v(t)=sintt26v(t)=\frac{\sin t}{t^{26}}, which expression correctly identifies v(t)v''(t) at t=πt=\pi?

Question 7
college-boardCalculus AB/BCAPExam Style
1 mark

Given two differentiable functions, p(x)p(x) and q(x)q(x), if their quotient satisfies p(x)q(x)=lnx\frac{p(x)}{q(x)} = \ln|x|, find p(c)p'(c) assuming q(c)0q(c) \neq 0 and q(c)+p(c)lnc=0q'(c) + p'(c) \ln|c| = 0 with c>0c > 0.

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Question 8
college-boardCalculus AB/BCAPExam Style
1 mark

What is the derivative of 4x(2x)2\frac{4x}{(2-x)^2} using the quotient rule?

Question 9
college-boardCalculus AB/BCAPExam Style
1 mark

What is the derivative of y(x)=ex4x3+xy(x) = \frac{e^x}{4x^3 + x}?

Question 10
college-boardCalculus AB/BCAPExam Style
1 mark

What is the derivative of h(x)=3x+2x21h(x) = \frac{3x + 2}{x^2 - 1}?