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 one year ago
is the trigonometric ratio of cos225degrees 1? (im in the unit circle)
 one year ago
is the trigonometric ratio of cos225degrees 1? (im in the unit circle)

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dpaInc
 one year ago
Best ResponseYou've already chosen the best response.0no.... cos (225 degrees) is NOT 1

dpaInc
 one year ago
Best ResponseYou've already chosen the best response.0since you're on the unit circle.... look at the xcoordinate of 225 degrees...

dpaInc
 one year ago
Best ResponseYou've already chosen the best response.0cos (225 degrees) = the xcoordinate of the point on the unit circle.

ihatealgebrasomuch
 one year ago
Best ResponseYou've already chosen the best response.0im confused though, because if its a right triangle, and the reference angle is 45 degrees, then the opposite angle is also 45 degrees, making it a 454590 triangle and the two legs' side lengths are the same so they would both be dw:1359842106830:dw

dpaInc
 one year ago
Best ResponseYou've already chosen the best response.0\(\large cos(225 ^\circ)=\frac{\sqrt2}{2} \) \(\large tan (225 ^\circ)=\frac{\frac{\sqrt2}{2}}{\frac{\sqrt2}{2}}=1 \)

ihatealgebrasomuch
 one year ago
Best ResponseYou've already chosen the best response.0dw:1359842455017:dw

ihatealgebrasomuch
 one year ago
Best ResponseYou've already chosen the best response.0its just negative square root 2 /2?
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