Algebra 3 Quiz
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INTRODUCTORY TRIGONOMETRY
Question 1
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Which expression is equivalent to
cos
2
x
csc
x
−
1
\frac{\cos^2 x}{\csc x-1}
c
s
c
x
−
1
c
o
s
2
x
on its domain?
A
sin
x
(
1
+
sin
x
)
\sin x(1+\sin x)
sin
x
(
1
+
sin
x
)
B
sin
x
(
1
−
sin
x
)
\sin x(1-\sin x)
sin
x
(
1
−
sin
x
)
C
−
sin
x
(
1
+
sin
x
)
-\sin x(1+\sin x)
−
sin
x
(
1
+
sin
x
)
D
sin
x
csc
x
+
1
\frac{\sin x}{\csc x+1}
c
s
c
x
+
1
s
i
n
x
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