| x+90−x | x−90+x | |||
f(x)=2cos( | )sin( | ) | ||
| 2 | 2 |
| π | π | |||
f(x)=2cos( | )sin(x− | ) | ||
| 4 | 4 |
| √2 | π | |||
f(x)=2* | sin(x− | ) | ||
| 2 | 4 |
| π | ||
f(x)=√2sin(x− | ) | |
| 4 |
| π | ||
−1 ≤ sin(x− | ) ≤ 1 /*√2 | |
| 4 |
| π | ||
−√2 ≤ √2sin(x− | ) ≤ √2 | |
| 4 |
1)
| √2 | √2 | |||
f(x)=sinx−cosx=√2*( | *sinx− | cosx) | ||
| 2 | 2 |
| π | π | |||
f(x)=√2*(sinx*cos | −sin | *cosx)⇔ | ||
| 4 | 4 |
| π | ||
f(x)=√2*(sin(x− | ) | |
| 4 |
| 1 | √3 | |||
g(x) = sin(x)−√3*cos(x)=2*( | sinx− | *cosx) | ||
| 2 | 2 |
| π | π | |||
g(x)=2*(sinx*cos | −sin | *cosx) | ||
| 3 | 3 |
| π | ||
g(x)=2*sin(x− | ) | |
| 3 |
chichi