Math 1220-002
Camacho
Fall 2012
November 30, 2012
-
Quiz #12
Name:________________________
Directions: Show your work in answering the following questions. Write your final answers in
the spaces provided. Use the back of the page for scratch work if necessary.
1.
Find the area enclosed by the loop r = 3 + cos(O).
[HINT: You want to integrate from 0 to 2ir]
rr,
2
f
Area=
A
L
+
2.
+
Find the length of the parametric curve defined by
3t + 1
y=5t—7
x
=
Length=
wheretgoesfromt=Otot=1O.
)OkJ’
o7- C°1
L)
+