Skip to content

Grade 12 · Precalculus

Trigonometric functions

57 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

  1. Warm-up

    For an angle θ\theta with sin⁡θ=513\sin\theta = \dfrac{5}{13} and cos⁡θ=1213\cos\theta = \dfrac{12}{13}, use the odd symmetry of tangent to evaluate tan⁡(−θ)\tan(-\theta) exactly.

  2. Warm-up

    For an angle θ\theta with sin⁡θ=2129\sin\theta = \dfrac{21}{29} and cos⁡θ=2029\cos\theta = \dfrac{20}{29}, use the odd symmetry of tangent to evaluate tan⁡(−θ)\tan(-\theta) exactly.

  3. Warm-up

    For an angle θ\theta with sin⁡θ=35\sin\theta = \dfrac{3}{5} and cos⁡θ=45\cos\theta = \dfrac{4}{5}, use the odd symmetry of tangent to evaluate tan⁡(−θ)\tan(-\theta) exactly.

Problems shown under their original terms: Generated (template, solver-computed).

Practice this free, right now

Unlimited math practice is on the free plan — no card, no trial clock.

See every Precalculus skill for grade 12