SOLUTION: what is the value of "sin to the -1 power times .707"?
-1
sin .707=
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Question 410549: what is the value of "sin to the -1 power times .707"?
-1
sin .707=
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
sin^-1 (.707) = 44.99134834 which is very close to 45 degrees.
I suspect that the problem started from:
sin(45) = .707106781
sin^(-1) (.707106781) is the same as arcsin (.707106781) which means:
find the angle whose sine is .707106781.
In your calculator, if you have a sine function, then you enter 45 and hit the sine function key to get .707106781.
to find the arcsin, or sin(-1), you enter .707106781 and then hit the 2d key and then the sine function key to get 45 degrees.
That's the way it works with a TI-30XA calculator.
If you are using a different calculator, then the method might be different.
you can also use sine tables and work backward.
sin^(-1) is not a formula like x^(-1) = 1/x.
sin^(-1) is a definition which means find the angle whose sine is .....
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