Trigonometric ratios and identities, degrees and radians, and inverse trigonometric functions, with a separate page of solved examples covering standard-angle values and heights and distances.
4 reference pages
Sine, cosine, tangent and their reciprocals, standard angle values, and the core trigonometric identities.
Worked examples finding trigonometric ratios, evaluating standard-angle expressions, proving identities, and using co-function identities.
Principal values, domains of inverse trig functions, and the complementary identity between tan⁻¹ and cot⁻¹, with worked examples.
What a radian actually measures, the standard-angle conversion table, and converting between degrees and radians, with worked examples.