| x2+4x+1 | |
| x2+1 |
| 1 | ||
a)oblicz wartość wyrażenia cos2α + | ||
| tgα |
| [5(n+1)]! *n5n | (5n+5)! * n5n | ||
= | |||
| (n+1)5(n+1) * (5n)! | (n+1)5n*(n+1)5 *(5n)! |
| (5n)!(5n+1)(5n+2)(5n+3)(5n+4)(5n+5)*n5n | ||
= | ||
| (n+1)5n(n+1)5*(5n)! |
| 1 | 1 | 1+√2−√3 | |||
= | * | = | |||
| 1+√2+√3 | 1+√2+√3 | 1+√2−√3 |
| 1+√2−√3 | 6+2√6−6√3 | |||
= | ||||
| 62−(2√6)2 | 12 |