π | ||
a) sin( | * cos(x)) ? | |
6 |
π | ||
−1≤cosx≤1 /* | ||
6 |
π | π | π | ||||
− | ≤ | cosx≤ | ||||
6 | 6 | 6 |
π | π | π | ||||
sin(− | )≤sin( | cosx)≤sin | ||||
6 | 6 | 6 |
1 | π | 1 | ||||
− | ≤sin( | cosx)≤ | ||||
2 | 6 | 2 |
π | ||
−1 ≤sinx≤ 1 /* | ||
4 |
π | π | π | ||||
− | ≤ | sinx ≤ | ||||
4 | 4 | 4 |
π | π | π | ||||
tg(− | ) ≤ tg( | sinx) ≤ tg( | ) | |||
4 | 4 | 4 |
π | π | π | ||||
− tg( | ) ≤ tg ( | sinx) ≤ tg( | ) | |||
4 | 4 | 4 |
π | ||
− 1 ≤ tg ( | sinx) ≤ 1 | |
4 |