| sin2α − cos2α | tgα − 1 | ||
= | |||
| 1 + 2sinα * cosα | tgα + 1 |
| sin(315) * cos120 | ||
a) | ||
| tg300 * ctg(330) |
| 1 | ||
2 | ||
| 3 |
| 32+2x | |
= | |
| x3 +16x |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||||
1− | + | − | +...− | = | + | +...+ | ||||||||
| 2 | 3 | 4 | 2n | n+1 | n+2 | 2n |
| 1 | 1 | 1 | 1 | 1 | ||||||
L=1− | = | ; P= | + | +...+ | ? nie jest rowne? | |||||
| 2 | 2 | 2 | 3 | 2 |
| 1 | 1 | |||
a) [1 + | + tg(7π + α)](1 − | + tagα)(1 − sin2α) = 2sinα * cosα | ||
| cos(2π −α) | cosα |
| 1 | ||
b) ( | − 1)2 − (tgα − sinα)2 + 2cosα = 1 + cos2α | |
| cosα |
| 1 | 1 | 2 | |||
+ | = | ||||
| 1 + sinα | 1 − sinα | cos2 α |
| sin(315) * cos120 | ||
a) | ||
| tg300 * ctg(330) |