Regents High School Examination Mathematics Worksheet - University Of The State Of New York Page 6

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Use this space for
2
computations.
16 The expression
is equivalent to
1
3
− +
+
1
3
1
3
(1)
(3)
− −
1
3
1
3
(2)
(4)
17 The accompanying graph represents a portion of a sound wave.
y
3
2
1
x
π
π
π
π
3
4
2
4
Which equation best represents this graph?
= 2
1
= sin 2
y
sin
x
y
x
(1)
(3)
2
=
1
+
=
+
y
sin
x
2
y
sin 2
x
2
(2)
(4)
2
18 Which equation has the complex number 4 − 3i as a root?
+ 6x − 25 = 0
+ 8x − 25 = 0
2
2
(1) x
(3) x
− 6x + 25 = 0
− 8x + 25 = 0
2
2
(2) x
(4) x
[6]
Math. B – Aug. ’07

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