MathDB

3

Part of 1986 AIME Problems

Problems(1)

Tangents and Cotangents

Source:

12/22/2005
If tan⁡x+tan⁡y=25\tan x+\tan y=25 and cot⁡x+cot⁡y=30\cot x + \cot y=30, what is tan⁡(x+y)\tan(x+y)?
trigonometryAMCAIME