Koglby mi ktos to wytlumaczyc?bo zwariuje z ta trygonometria
Kasia: Oblicz
sinxcosx>0
2|cosx|>=1
6 mar 14:20
Blee:
zauwaz ze: sinxcosx = 0.5*sin(2x)
6 mar 14:21
Kasia: A no tak, a z tym modulem
6 mar 15:29
Basia:
| | 1 | | 1 | | 1 | |
|cosx|> |
| ⇔ cos x > |
| lub cos x < − |
| |
| | 2 | | 2 | | 2 | |
6 mar 15:31