KnowraTrigonometric functionsLinked fromLinked fromThe 25 pages that link to Trigonometric functions, each with the reason it gives.All 25Broader topic 2Related 7Narrower topic 12Compared with 4Elementary functionBroader topic: Trigonometric functions are explicitly included among the permitted building blocks.Even and odd functionsBroader topic: Sine is odd, cosine is even, and their parity follows from angle reflection.