Question 388837
What is the value of sin (Arc cos 1/x)?
a) sqrt1-xsq/x 
b) sqrt1+xsq/x 
c) x/sqrt xsq+1 
d) sqrt xsq-1/x
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Use a circle of radius x
The side adjacent = 1
cos = 1/x
The side opposite = sqrt(x^2 - 1)
sin = sqrt(x^2 - 1)/x
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