삼각형 $\mathrm{ABC}$가 $\tan A \times\tan B = 1# 이면 각$\mathrm{C}$가 직각인 직각삼각형이다.(A triangle $\mathrm{ABC}$ is a right triangle with angles $\mathrm{C}$ being right angles if $\tan A \times\tan B
- Author:
- 민은기 (Min Eun Gi)
삼각형 $\mathrm{ABC}$가 $\tan A \times\tan B = 1# 이면 각$\mathrm{C}$가 직각인 직각삼각형이다.(A triangle $\mathrm{ABC}$ is a right triangle with angles $\mathrm{C}$ being right angles if $\tan A \times\tan B = 1$.)
https://min7014.github.io/math20230430001.html