Sketch, on separate diagrams, the graphs of

a) y = sin 3x for 0° ≤ x ≤ 360°

b) y = −cos 2x for 0° ≤ x ≤ 360°

c) y = tan 1/2x for −360° ≤ x ≤ 360°

d) y = 2 sin 4x for 0° ≤ x ≤ 180° 

e) y = 3 tan (x + 30°) for 0° ≤ x ≤ 360°.

f) y = 3 sin 2x − 1 for 0° ≤ x ≤ 360°.