Limits
Derivatives
Particle Motion
100

f(x) = 2x2 - 3x


lim f(x)x->-1 =

f(x) = 2x2 - 3x


lim f(x)x->-15

100

f(x) = 4x5

f'(x) =

f(x) = 4x5

f'(x) = 20x4

200

limx -> -1 (x2 + x - 2) / (x2 - 6x + 5) =

limx -> -1 (x2 + x - 2) / (x2 - 6x + 5) = -1/6

200

f(x) = csc(x)

f'(x) =

f(x) = csc(x)

f'(x) = -csc(x)cot(x)

200

An object moves along a straight line so that at any time t, for 0 <= t <= 8, its position is given by x(t) = 5 + 4t - t2

For what value of t is the object at rest?

An object moves along a straight line so that at any time t, for 0 <= t <= 8, its position is given by x(t) = 5 + 4t - t2

For what value of t is the object at rest?

t = 2

300

limx-> 3pi/2 (tan(x)) =

limx-> 3pi/2 (tan(x)) = DNE

300

f(x) = sin(pi*x2)

f'(x) =

f(x) = sin(pi*x2)

f'(x) = 2*pi*x*cos(pi*x2)

300

A particle moves along the x-axis so that at any time t >= 0, its position is given by x(t) = 1/2(a - t)2, where is a positive constant. For what values of t is the particle moving to the right?

a) 0 < t < a

b) a < t

c) t = a

d) the particle is never moving to the right

A particle moves along the x-axis so that at any time t >= 0, its position is given by x(t) = 1/2(a - t)2, where is a positive constant. For what values of t is the particle moving to the right?

a) 0 < t < a

b) a < t

c) t = a

d) the particle is never moving to the right

400

limx->0(cos(x) / x)

limx->0(cos(x) / x) = infinity -> DNE

400
y = sqrt(cos(x3))


y' =

y = sqrt(cos(x3))


y' = -(3x2sin(x3)) / 2*sqrt(cos(x3))

500

limx->0(sin(x) / x) =

limx->0(sin(x) / x) = 1

500

f(x) = [cos(4x) / 3x5]

f'(x) =

f(x) = [cos(4x) / 3x5]

f'(x) = -[4xsin(4x) + 5cos(4x)] / 3x6

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