Sine and cosine repeat after 360, have maximum 1 and minimum −1, and vary smoothly. Sine starts at zero and rises; cosine starts at its maximum. Sine Cosine **x (degrees)** | **0** | **90** | **180** | **270** | **360** sin x | 0 | 1 | 0 | −1 | 0 cos x | 1 | 0 | −1 | 0 | 1 Use the key points to guide a smooth sketch. Sine and cosine curves do not consist of straight line segments between these values.

Sine and cosine repeat after \(360^\circ\), have maximum 1 and minimum −1, and vary smoothly. Sine starts at zero and rises; cosine starts at its maximum.

Use the key points to guide a smooth sketch. Sine and cosine curves do not consist of straight line segments between these values.

Trigonometry

Cambridge IGCSE Mathematics 0580. Initial catalogue covers the assessed demands of February/March 2026 Paper 22; further Core and Extended mappings require paper-level scope review.

Sine and cosine through one full turn

Sine and cosine through one full turn

x (degrees)	0	90	180	270	360
sin x	0	1	0	−1	0
cos x	1	0	−1	0	1