i have some question about math 181

1. Consider the curves

y=2√x and y=x
and the region


R

bounded by both curves in the first quadrant.

(a) Find the area of

R
.

(b) Find the volume of the solid obtained by rotating

R
about the

x
-axis

2. Consider the region

S
in the first quadrant bounded by

y= cube root of x
and

y


=


8

. Find the volume of the solid obtained by rotating

S
about the


y

-axis.

3. Find the length of the curve

y= 2/3 x^(3/2)
on the interval

[3,8]

4. Consider the triangle with vertices


(


0


,


0


)

,

(2,0)
and


(


2


,


2


)

. Calculate the volume of the solid obtained by rotating this triangle about the line

y=


−


3




0 replies

Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply

Your email address will not be published.