For the following exercises, use a graphing utility to graph the curve represented by the parametric equations and identify the curve from its equation. 60. [ T ] Use technology to graph the curve given by the parametric equations x = 2 cot ( t ) , y = 1 − cos ( 2 t ) , π / 2 ≤ t ≤ π / 2 . This curve is known as the witch of Agnesi.
For the following exercises, use a graphing utility to graph the curve represented by the parametric equations and identify the curve from its equation. 60. [ T ] Use technology to graph the curve given by the parametric equations x = 2 cot ( t ) , y = 1 − cos ( 2 t ) , π / 2 ≤ t ≤ π / 2 . This curve is known as the witch of Agnesi.
For the following exercises, use a graphing utility to graph the curve represented by the parametric equations and identify the curve from its equation.
60.
[
T
]
Use technology to graph the curve given by the parametric equations
x
=
2
cot
(
t
)
,
y
=
1
−
cos
(
2
t
)
,
π
/
2
≤
t
≤
π
/
2
. This curve is known as the witch of Agnesi.
Your employer automatically puts 5 percent of your
salary into a 401(k) retirement account each year. The
account earns 10% interest. Suppose you just got the
job, your starting salary is $60000, and you expect to
receive a 2.5% raise each year.
For simplicity, assume that interest earned and your
raises are given as nominal rates and compound
continuously.
Find the value of your retirement account after 20
years
Compute the principal values of i¹² (i — 1)² and (i(i − 1))².
-
-
1
2 3
Consider the matrix A = 0 4 5. Give an example of
006
(a) a nonzero matrix B for which det(A + B) = det(A) + det(B);
(b) a matrix C for which det(A+C)det(A) + det(C).
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