Решение задачи #60907
Упростить sin2x/1+cos2x
| sin2x 1+cos2x | = | 2sinxcosx sin2x + cos2x + cos2x - sin2x | = |
| = | 2sinxcosx 2cos2x | = | sinx cosx |
Теги задачи:
| sin2x 1+cos2x | = | 2sinxcosx sin2x + cos2x + cos2x - sin2x | = |
| = | 2sinxcosx 2cos2x | = | sinx cosx |
Теги задачи: