SOLUTION: how do i evaluate sin[cos^-1(6/7)] ?

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Question 325935: how do i evaluate sin[cos^-1(6/7)] ?
Answer by Apathious(24) About Me  (Show Source):
You can put this solution on YOUR website!
sin([arccos((6)/(7))])
Take the inverse cosine of (6)/(7) to get 0.5411.
sin((0.5411))
Remove the parentheses around the expression 0.5411.
sin(0.5411)
Take the sine of 0.5411 to get 0.5151.
0.5151