| π | ||
sin2x=sin | ||
| 6 |
| π | 5π | |||
2x= | +2kπ ⋁ 2x = | +2kπ | ||
| 6 | 6 |
| π | 5π | |||
x= | +kπ ⋁ x= | +kπ k∊ℂ | ||
| 12 | 12 |
| 1 | ||
sinxcosx = | ||
| 4 |
| 1 | 1 | ||
* 2sinxcosx = | /*2 | ||
| 2 | 4 |
| 1 | ||
2sinxcosx = | ||
| 2 |
| 1 | ||
sin2x = | ||
| 2 |
| π | ||
xo = 300 = | ||
| 6 |
| π | π | |||
2x = | + 2kπ ⋁ 2x = − | + 2kπ | ||
| 6 | 6 |
| π | π | |||
x = | + kπ ⋁ x = − | + kπ, k ∊ C | ||
| 12 | 12 |
