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ihatealgebrasomuch
 3 years ago
is the trigonometric ratio of cos225degrees 1? (im in the unit circle)
ihatealgebrasomuch
 3 years ago
is the trigonometric ratio of cos225degrees 1? (im in the unit circle)

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

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

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

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

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