| tgα+tgβ | ||
Sprowadź wyrażenie do jak najprostszej postaci : W= | , a nstępnie oblic
| |
| ctgα+ctgβ |
| L | ||
W= | ||
| M |
| 1 | ||
ctgα= | ||
| tgα |
| 1 | ||
ctgβ= | ||
| tgβ |
| 1 | 1 | tgα+tgβ | ||||
M= | + | = | ||||
| tgα | tgβ | tgα* tgβ |
| tgα + tgβ | tgα + tgβ | tgα tgβ | |||||||||||||||
= | * | =
| |||||||||||||||
| ctgα + ctgβ |
| tgα tgβ |
| (tgα + tgβ) tgα tgβ | ||
= | = tgα tgβ | |
| tgβ + tgα |