PLEASE HELP ME IM DESPERATE

the point (1, −1) is on the terminal side of angle θ, in standard position, what are the values of sine, cosine, and tangent of θ make sure to show all work

Question

PLEASE HELP ME IM DESPERATE 

the point (1, −1) is on the terminal side of angle θ, in standard position, what are the values of sine, cosine, and tangent of θ make sure to show all work

popitree · Answer

|dw:1453851793704:dw|

popitree · Answer

and remember sin and tan are negative at the 4th quadrant

anonymous · Answer

i still do not understand :(

popitree · Answer

okay, so that is right angle triangle, so sine  = height/hypotenuse = -1/sqrt(2)

popitree · Answer

basically angle = -45degree, so sin(-45), cos(-45) and tan(-45) is the ans. Believe you know thw values

anonymous · Answer

what equations do you use for cosine and tangent

popitree · Answer

cosine = base/hypotenuse, tan = height/base

anonymous · Answer

which side is the base

anonymous · Answer

the x axis?

popitree · Answer

look, in trigonometry the opposite side of the concerned angle is height, and adjacent line is base

popitree · Answer

|dw:1453852237761:dw|