2: A 13ft ladder is leaning against a wall. If the top of the ladder slips down the wall at a rate of 2ft/sec how fast will the foot of the ladder be moving away from the wall when the top is 5ft above the ground?

3: y': X^2 - 2XY + Y^3 = C

4: Coffee is poured into a cup at the rate of 2cm^3/sec. The bottom of the cup has a radius of 2cm the top of the cup has a radius of 4cm and the cup is 6cm tall. When the coffee is halfway to the top (3cm deep), how fast is the coffee level rising?(hint imagine that the cup is a cone going all the way down to a point instead of being truncated.

5: A particle is moving along a line with its position in meters given by the function
s(t)=1/((9-t)^2)
where t is in seconds. what is the acceleration of the particle after 5 seconds?

6: Find the equation of all the lines which are tangent to the ellipse 3x^2+4y^2=1 and have slop 28/3

7: Show that the two families of curves x^2+(y-c)^2=c^2 and
(x-k)^2+y^2=k^2 are orthogonal trajectories of each other.

8: f(x)=1+x-2x^2
Use either of the two of the definitions of the derivative to show that f'(1)=-3(may need you to do both definitions to help me out pls)

9: compute the derivatives of the functions below:
A: g(x)=(x-1)^2 sin(x)
B: h(x)=(x-3)/(x+1)
C: f(x)=(tan(x))/(1+ cos(x)
D: g(x)=(x+(1/x))^(2/3)
E: f(x)=cos(sin^2 x)

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