Answer: sine
−
√
2
2
cosine
√
2
2
tangent = -1
Step-by-step explanation: enter image source here
enter image source here
7
π
4
is in the fourth quadrant of the unit circle at
315
o
The coordinate values are
(
√
2
2
,
−
√
2
2
)
The y-coordinat is the value for sine
−
√
2
2
The x-coordinate is the value for cosine
√
2
2
And
y
x
is tangent
⎛
⎜
⎝
−
√
2
2
√
2
2
⎞
⎟
⎠
=
−
1
