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Derivative Review

Authored by Stella Ollarsaba

12th Grade

Used 7+ times

Derivative Review
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If  y=(x3+1)2y=\left(x^3+1\right)^2  , then  dydx=\frac{\text{d}y}{\text{d}x}=  

 (3x2)2\left(3x^2\right)^2  

 2(x3+1)2\left(x^3+1\right)  

 2(3x2+1)2\left(3x^2+1\right)  

 6x2(x3+1)6x^2\left(x^3+1\right)  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If  y=2x+33x+2y=\frac{2x+3}{3x+2}  , then  dydx=\frac{\text{d}y}{\text{d}x}=  

 12x+13(3x+2)2\frac{12x+13}{\left(3x+2\right)^2}  

 12x13(3x+2)2\frac{12x-13}{\left(3x+2\right)^2}  

 5(3x+2)2\frac{5}{\left(3x+2\right)^2}  

 5(3x+2)2\frac{-5}{\left(3x+2\right)^2}  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If f(x)=ln(x+4+e3x),f\left(x\right)=\ln\left(x+4+e^{-3x}\right),  then  f(0)f'\left(0\right)  is

 25-\frac{2}{5}  

 15\frac{1}{5}  

 14\frac{1}{4}  

 25\frac{2}{5}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If  y=x2sin(2x),y=x^2\sin\left(2x\right),  then  dydx=\frac{\text{d}y}{\text{d}x}=  

 2xcos(2x)2x\cos\left(2x\right)  

 4xcos(2x)4x\cos\left(2x\right)  

 2x(sin2x+xcos2x)2x\left(\sin2x+x\cos2x\right)  

 2x(sin2xxcos2x)2x\left(\sin2x-x\cos2x\right)  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A particle moves along the x-axis so that at time t0t\ge0  it position is given by  x(t)=2t321t2+72t53.x\left(t\right)=2t^3-21t^2+72t-53.  At what time  tt  is the particle at rest?

 t=1t=1  only

 t=3t=3  only

 t=3 and t = 72t=3\ and\ t\ =\ \frac{7}{2}  

 t=3 and t=4t=3\ and\ t=4  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

00

14\frac{1}{4}

11

ee

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 y=2x12xy=2\sqrt{x}-\frac{1}{2\sqrt{x}}  , then  dydx=\frac{\text{d}y}{\text{d}x}=  

 x+1xxx+\frac{1}{x\sqrt{x}}  

 x12+x32x^{-\frac{1}{2}}+x^{-\frac{3}{2}}  

 4x14xx\frac{4x-1}{4x\sqrt{x}}  

 1x+14xx\frac{1}{\sqrt{x}}+\frac{1}{4x\sqrt{x}}  

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