π | π | |||
cos(x)≥0 x∊<− | +2kπ; | +2kπ> | ||
2 | 2 |
π | ||
x∊<2kπ; | +2kπ> | |
2 |
π | ||
√2sin(x+ | )+√sin(2x)>1 | |
4 |
π | ||
√2sin(x+ | )+√2sin2(x+π4)−1>1 | |
4 |
π | ||
t=sin(x+ | ) | |
4 |
1 | ||
t> | ||
√2 |
π | 1 | |||
sin(x+ | )> | |||
4 | √2 |
3π | π | π | |||
+2kπ>x+ | > | +2kπ | |||
4 | 4 | 4 |
π | |
+2kπ>x>2kπ | |
2 |
5^2 | 52 |
2^{10} | 210 |
a_2 | a2 |
a_{25} | a25 |
p{2} | √2 |
p{81} | √81 |
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