MathCastle
Sign up
PrecalculusSuperchallengeTrigonometric Functions

Trigonometric Functions · Superchallenge problem

Evaluate the product exactly, using a pairing insight rather than a calculator:

tan⁡20∘ tan⁡40∘ tan⁡50∘ tan⁡70∘.\tan 20^\circ\,\tan 40^\circ\,\tan 50^\circ\,\tan 70^\circ.
Practice more like this Review this concept