y=sinθ
x=cosθ
x2+y2=sin2θ+cos2θ=1
y=√1−x2(−1≦x≦1)
y=√1−cos2θ (360(n−1)°≦θ≦180(2n−1)°)
y=−√1−(x−2)2 (1≦x≦3)
y=−√1−cos2θ (180(2n−1)°≦θ≦360n°)
T.theodor 2022.10.30.
y=sinθ
x=cosθ
x2+y2=sin2θ+cos2θ=1
y=√1−x2(−1≦x≦1)
y=√1−cos2θ (360(n−1)°≦θ≦180(2n−1)°)
y=−√1−(x−2)2 (1≦x≦3)
y=−√1−cos2θ (180(2n−1)°≦θ≦360n°)
T.theodor 2022.10.30.