Sprendimas: wds7Eh - 1
| 1 |
| / d |
| 1 |
| / f |
D
|
| 1 |
| / d |
| 1 |
| / f |
D =
+
$$D$$ = $$\frac{1}{d}+\frac{1}{f}$$
| 1 |
| / d |
| 1 |
| / f |
D =
+
$$D$$ = $$\frac{1}{0.21}+\frac{1}{0.28}$$
| 1 |
| / 0.21 |
| 1 |
| / 0.28 |
D =
+
$$D$$ = $$\frac{1}{0.21}+\frac{25}{7}$$
| 1 |
| / 0.21 |
| 25 |
| / 7 |
D =
$$D$$ = $$\frac{1225}{147}$$
| 1225 |
| / 147 |
D =
$$D$$ = $$\frac{25}{3}$$
| 25 |
| / 3 |
D = 8.33333$$D$$ = $$8.33333$$