SOLUTION: 1) 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 Answer : a Thanks

Question 388837: 1) 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
Answer : a
Thanks
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
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
------------------
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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