13-6-4
下午
9:33
Math 126 Sections 10.1 and 13.1 (7th ed)
第
1
页（共
16
页）
Current Score :
33 / 33
Due :
Monday, April 22 2013 11:00 PM PDT
1.
1/1 points |
Previous Answers
SCalcET7 10.1.004.
Select the curve generated by the parametric equations. Indicate with an arrow the direction in which the curve is traced as
t
increases.
Math 126 Sections 10.1 and 13.1 (7th ed) (Homework)
ZHUOER WANG
Math 126 Spring 2013 Perkins, section F & G, Spring 2013
Instructor: PATRICK PERKINS
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x
=
e
−
t
+
t
,
y
=
e
t
−
t
,
−
2
≤
t
≤
2

13-6-4
下午
9:33
Math 126 Sections 10.1 and 13.1 (7th ed)
第
2
页（共
16
页）
2.
2/2 points |
Previous Answers
SCalcET7 10.1.011.
Consider the following.
(a) Eliminate the parameter to find a Cartesian equation of the curve.
(b) Sketch the curve and indicate with an arrow the direction in which the curve is traced as the parameter increases.
x
= sin
θ
,
y
= cos
θ
,
−
π
≤
θ
≤
π
1
2
1
2

13-6-4
下午
9:33
Math 126 Sections 10.1 and 13.1 (7th ed)
第
3
页（共
16
页）
3.