derivatives
related rates
particle motion
Indefinite integrals radicals
Product, Quotient, chain
100

given y=3sin(x), find dy/dx

dy/dx= 3cos(x)

100

A right triangle has legs of 21 inches and 28 inches whose sides are changing. The short leg is increasing by 8 in/sec and the long leg is growing at 2 in/sec. What is the rate of change of the area?

dA/dt= 133 in2/sec

100

A particle moves along the x-axis so that at time t, is greater than or equal to, t≥0 its velocity is given by v(t)=3t2−4t−20. Determine if the particle is speeding up or slowing down at t = 3

slowing down

100

∫(3/√x)dx

6x1/2+C

100

Given the function f(x) = x2 - xsinx, find f'(x) in any form


f'(x)=2x - sinx - xcosx

200

If xy2 = -y3 - x3 then find dy/dx in terms of x and y.

dy/dx= (-y2-3x2)/(3y2+2xy)

200

A rectangle has a length of 11 inches and a width of 12 inches whose sides are changing. The length is increasing by 10 in/sec and the width is shrinking at 5 in/sec. What is the rate of change of the area?




dA/dt = 65 in2/sec

200

A particle moves along the x-axis so that at time t≥0 its position is given by x(t)=−t2−8t+44. Determine the acceleration of the particle at t=9.

-2

200

∫√xdx

(2/7)x7/2+C

200
Given the function f(x) = x/(5-3x4), find f'(x) in simplified form.

f'(x)= (9x4+5)/(5-3x4)2

300

f is a differentiable function with f(3)=-4 and f'(3)=-2. Let the function g(x)=f(x)/(2x-1). Write the equation of the line tangent to the graph of g at the point where x=3.

y+(4/5)=-(2/25)(x-3)

300

A right triangle has legs of 30 inches and 40 inches whose sides are changing. The short leg is decreasing by 2 in/sec and the long leg is growing at 5 in/sec. What is the rate of change of the hypotenuse?

dc/dt= 2.8 in/sec

300

A particle moves along the x-axis so that at time t≥0 its velocity is given by v(t)=2t+8. Determine if the particle is speeding up or slowing down at t=3.


speeding up

300

∫(5√x3)/4 dx

(1/2)x5/2+C

300

Given the function f(x) = 2√(cosx), find f'(x).

f'(x)= -sinx/√cosx

400

Given the function f(x)= 5/(-9x-6)3, find f'(x) 

f'(x)=-15(-9x-6)-4(-9)

400

A rectangle has a length of 8 inches and a width of 12 inches whose sides are changing. The length is decreasing by 9 in/sec and the width is growing at 4 in/sec. What is the rate of change of the area?


dA/dt = -76 in2/sec

400

A particle moves along the x-axis so that at time t≥0 its position is given by x(t)=t3−3t2−9t. Determine all values of t when the particle is at rest.



3

400

∫√x5/4 dx

(1/14)x7/2+C

400

given the function y=4cos(4x2-6), find dy/dx

dy/dx=-32xsin(4x2-6)

500

if -y=-2x3-y2 then find d2y/dx2 at the point (-1,2) in simplest form.

4/3

500

The height and radius of a cylinder are both changing. The height of the cylinder is increasing at a constant rate of 1 foot per second. The volume remains a constant 216 cubic feet. At the instant when the height of the cylinder is 8 feet, what is the rate of change in the radius? The volume of a cylinder can be found with the equation V=πr2h Round your answer to three decimal places.

dr/dt = -0.183 ft/sec

500

A particle moves along the x-axis so that at time t≥0 its position is given by x(t)=−t3+9t2−24t. Determine the speed of the particle at t=1.


9

500

∫(6 4√x)/5 dx

(24/25)x5/4+C

500

Given the function f(x)=x/(5-2x4), find f'(x) in simplified form.

f'(x)=(6x4+5)/((5-2x4)2)