| 1 + i | ||
Zapisz liczbę ( | )25 w postaci a +ib. | |
| √3 + 1 |
| √4x2 − 20x +25 | √(2x −5)2 | |2x − 5| | ||||
1. W= | = | = | = | |||
| 25 − 4x2 | 25 − 4x2 | 25 − 4x2 |
| |2x − 5| | 2x−5 | −1 | |||
= | = | ||||
| (5−2x)(5+2x) | (5−2x)(5+2x) | 5+2x |
| √4x2 − 20x +25 | √(2x −5)2 | |2x − 5| | ||||
2. W= | = | = | = | |||
| 25 − 4x2 | 25 − 4x2 | 25 − 4x2 |
| |2x − 5| | 5−2x | 1 | |||
= | = | ||||
| (5−2x)(5+2x) | (5−2x)(5+2x) | 5+2x |
| cosα − 1 | sinα | |||
sinα x | = | x (cosα − 1) | ||
| cosα | cosα |
| 1 | 23 | 7 | 1 | 23 | 7 | 69 | ||||||||
2,3 + 0,7 * | = | + | * | = | + | = | + | |||||||
| 3 | 10 | 10 | 3 | 10 | 30 | 30 |
| 7 | 76 | 16 | 8 | |||||
= | = 2 | = 2 | ||||||
| 30 | 30 | 30 | 15 |
| x | x | 1 | ||||
B. | − | +1= | (x+6) | |||
| 2 | 3 | 6 |
| 5 | ||
C. 1−2x+ | =4 | |
| 3 |
| 1 | 1 | x | ||||
D. x− | − x+ | =− | ||||
| 4 | 2 | 4 |
| x | x | 1 | ||||
B. | − | +1= | (x+6) / *6 | |||
| 2 | 3 | 6 |
| 3 | ||
Dana jest funkcja okreslona wzorem f(x)= − | , x∊R − {0}. Naszkicuj wykres tej funkcji, a | |
| X |