 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from nazz, a student: prove; tan inverse 1/4=1/3 cot inverse 52/47 |
You do not say what tools you have available. I would set $A = \tan^{-1} 1/4$, and then rewrite your equation as
\[\tan (3A) = \frac{47}{52}.\]
The formula for the tangent of $\tan 3A$ in terms of $\tan A$ gives you the answer.
Chris
| ||
| ||
| ||
 |
 |
|
|
||
Math Central is supported by the University of Regina and the Imperial Oil Foundation.