Finding a Polynomial Function In Exercises 71 − 74 , find a cubic polynomial function f with real coefficients that has the given complex zeros and x -intercept. (There are many correct answers.) Complex Zeros x -Intercept x = − 1 ± 3 i ( − 4 , 0 )
Finding a Polynomial Function In Exercises 71 − 74 , find a cubic polynomial function f with real coefficients that has the given complex zeros and x -intercept. (There are many correct answers.) Complex Zeros x -Intercept x = − 1 ± 3 i ( − 4 , 0 )
Solution Summary: The author calculates the polynomial function of degree 3 with the zeroes -1pm sqrt
Finding a Polynomial Function In Exercises
71
−
74
, find a cubic polynomial function f with real coefficients that has the given complex zeros and
x
-intercept. (There are many correct answers.)
Complex Zeros
x
-Intercept
x
=
−
1
±
3
i
(
−
4
,
0
)
Combination of a real number and an imaginary number. They are numbers of the form a + b , where a and b are real numbers and i is an imaginary unit. Complex numbers are an extended idea of one-dimensional number line to two-dimensional complex plane.
Question 10 (5 points)
(07.04 MC)
Vectors u and v are shown in the graph.
-12-11 -10 -9
-8 -7
-6
-5
What is proju?
a
-6.5i - 4.55j
b
-5.2i+2.6j
с
-4.7631 3.334j
d
-3.81i+1.905j
<
+
10
6
5
4
3
2
-3 -2
-10 1
-1
-2
-3
u
-4
-5
-6
-7
Find the lengths of PR and OR in terms of the angles α and β.
Find the angles ∠ONQ and ∠NPQ.
Find the lengths of ON and PN in terms of the angle β.
Find the length of PQ.
Find the length of QR.
Find the length of OM.
Find the length of RM.
What formula can you write down by noting that PR = QR + PQ?
What formula can you write down by noting that OR = OM - RM?
5) Solve the triangle.
2
95°
4
B
с
A) c=3.63, A=59.5°, B = 25.5°
C) c = 4.63, A = 59.5°, B = 25.5°
A
B) c 4.63, A 25.5°, B = 59.5°
=
=
D) c 5.63, A = 25.5°, B = 59.5°
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