Algebra 2/trigonometry - Worksheet Page 7
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28Use this space for
∑
π
computations.
3
n
17 What is the value of
cos
?
2
n
1
(1) 1
(3) 0
1 __
(2) –1
(4)
2
2
18 The roots of the equation 4(x
1)
3x are
(1) imaginary
(3) real, rational, unequal
(2) real, rational, equal
(4) real, irrational, unequal
2
19 If f(x)
2x
3x
4, then f(x
3) is equal to
2
2
(1) 2x
3x
7
(3) 2x
9x
13
2
2
(2) 2x
3x
13
(4) 2x
9x
25
2
3
12
20 The expression x(3i
)
2xi
is equivalent to
(1) 2x
27xi
(3)
25x
(2)
7x
(4)
29x
21 If the terminal side of angle θ passes through the point ( 3, 4),
what is the value of sec θ?
5 __
5 __
(1)
(3)
3
4
5 __
5 __
(2)
(4)
3
4
[7]
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Algebra 2/Trigonometry – Jan. ’16
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