What is ${sin}^{- 1} - 1$ $sin^-1 -1$ ?

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Answer 1 · 2016-05-07T12:38:31

As the interval is not specified, the general solution is given.
$( 2n-1/2)pi, n=0, +-1, +-2, +-3,...$ .
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Sine is negative in the 3rd and 4th quadrant. The odd multiple of #pi/2) here is the solution.

Answer: $( 2n-1/2)pi, n=0, +-1, +-2, +-3, .$ .
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n = 1 gives $(3/2)pi$ .

What is sin^-1 -1sin−1−1sin^-1 -1?