x | ||
cosx=2cos2 | −1, | |
2 |
x | 1 | |||
cos2 | = | (cosx+1), | ||
2 | 2 |
x | ||
2sin(2x)cos2 | =sin(2x)(cosx+1) = sin(2x)cosx+sin(2x). | |
2 |
3x+x | 3x−x | |||
=2sin | cos | + sin(2x) = sin(3x)+sinx+sin(2x) | ||
2 | 2 |
5^2 | 52 |
2^{10} | 210 |
a_2 | a2 |
a_{25} | a25 |
p{2} | √2 |
p{81} | √81 |
Kliknij po więcej przykładów | |
---|---|
Twój nick | |