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OpenStudy (anonymous):
Help please, it is much appreciated(: To solve cos^-1(cos(-π/6)), what is the angle in the interval [0,π] whose cosine is (√3)/2 ?
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OpenStudy (cybershadow):
cosPi/6 is = sqrt(3)/2 and it is in the interval [0,pi] , so it is Pi/6 , if dats what u were asking for?
OpenStudy (anonymous):
Shouldn't the negative sign be on there somewhere? .-.
OpenStudy (cybershadow):
no because its in the interval [o,pi]
OpenStudy (ybarrap):
|dw:1389420317681:dw|
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