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Ilovepurple42043
 one year ago
use the unit circle to find the inverse function value degrees.
cos^1(sqrt2/2)
Ilovepurple42043
 one year ago
use the unit circle to find the inverse function value degrees. cos^1(sqrt2/2)

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You should ask this question in pre calc you might get a better answer

Ilovepurple42043
 one year ago
Best ResponseYou've already chosen the best response.0is ther a pre calc section?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0is there more information ?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0dw:1432753605791:dw CAST rule given cos value is positive so its either in first or 4th quadrant

Ilovepurple42043
 one year ago
Best ResponseYou've already chosen the best response.0ther is sorry. 2 sin theta cos theta+cos theta=0 @Nnesha

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0as nnesha said, it's either in the 1st or 4th quadrant http://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Unit_circle_angles_color.svg/1024pxUnit_circle_angles_color.svg.png reference this

Ilovepurple42043
 one year ago
Best ResponseYou've already chosen the best response.0yay awesome thanks

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0\[\huge\rm 2sin \theta \cos \theta + \cos \theta = 0\] take out common factor set it equal to 0 solve for cos and sin
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