| 1 | 1 | sinα | cosα | |||||
( | − | )*(1+tgα+ctgα)= − | + | |||||
| sinα | cosα | cos2α | sin2α |
| 1 | 1 | sinx | cosx | |||||
L=( | − | )(1+ | + | )= | ||||
| sinx | cosx | cosx | sinx |
| 1 | 1 | cosx | 1 | sinx | 1 | |||||||
= | + | + | − | − | − | = | ||||||
| sinx | cosx | sin2x | cosx | cos2x | sinx |
| sinx | cosx | |||
= − | + | =P | ||
| cos2x | sin2x |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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