Tangents And Tables
Geometry
Level
1
\[ \tan 25^\circ \qquad \tan 35 ^\circ \qquad \tan 45^\circ \qquad \tan55^\circ \qquad \tan 65^\circ \]
The above shows 5 numbers. The reciprocal of each of these numbers is equal to another number in this list, except for one. Which one?
by
Pi Han Goh