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Mathematics 18 Online
OpenStudy (anonymous):

Calculate the following inverse trig expression with answers as principle values: cos(sin(inverse)(-1))

OpenStudy (anonymous):

\[\cos (\sin^{-1} (-1)\]

OpenStudy (anonymous):

Okay, at what angle does sin equal -1?

OpenStudy (anonymous):

i forgot

OpenStudy (anonymous):

135 degrees and 315 degrees

OpenStudy (anonymous):

@Study23 u there?

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