Trig.
posted by Timothy .
Hey I am doing test corrections and need help,
Which of the following inverse functions are defined for x=1/2 ? Select all that apply.
Y=tan^1 x
Y=cos^1 x
Y=sin^1 x
Y=csc^1 x
Y=sec^1 x
Y=cot^1 x

Trig. 
Steve
since sec(x) and csc(x) are both greater than 1, there is no angle x such that
sec(x) = 1/2 or csc(x) = 1/2
The rest are either always between 1 and 1 or have infinite range.
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