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Mathematics
Mathematics
Problem
Which of the following is equal to
1
sec
x
\dfrac{1}{\sec x}
sec
x
1
? a)
csc
x
\csc x
csc
x
b)
sec
x
\sec x
sec
x
c)
cos
x
\cos x
cos
x
d)
cot
x
\cot x
cot
x
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