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Mathematics 13 Online
OpenStudy (anonymous):

Pleaseee help!!!! Find the exact value of cot(sin^-1(-1))

OpenStudy (anonymous):

OpenStudy (zzr0ck3r):

when sinx is at -1 cosx is undefined

OpenStudy (zzr0ck3r):

also, anytime we have an inverse trig function and the domain is not restricted, then we will have infinite answers (if we have answers)

OpenStudy (anonymous):

Oh okay! I didn't understand at all at first, but you explained it and it's all good now! Thank you for helping me out~ (:

OpenStudy (zzr0ck3r):

np

OpenStudy (zzr0ck3r):

err I mean when sinx = -1 cos(x) = 0 and thus cot(x) is undefined. sorry

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