Sin to the power of negative 1 (5/8)

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Guest Feb 20, 2015

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This isn't the "sine of negative 1" .... it's the sine inverse.......it returns an angle whose sine = 5/8....so we have

sin-1 (5/8) = about 38.68 degrees ...... it also could be a second quadrant angle .... = about 141.32 degrees

CPhill Feb 20, 2015

CPhill · Answer 1 · 2015-02-20T02:32:23

This isn't the "sine of negative 1" .... it's the sine inverse.......it returns an angle whose sine = 5/8....so we have

sin-1 (5/8) = about 38.68 degrees ...... it also could be a second quadrant angle .... = about 141.32 degrees