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2. 1,4-² = 1 4/10 -² = 14/10 -² = 7/5 -² = 5/7 ² = 25/49
3. (6 1/2)-¹ = 13/2 = 2/13
4. (2²)-³ · (-2⁴)² 2-⁶ · 2⁸ 2² 2²
--------------- = ---------- = -------------- = ------ = 2² : 2-¹⁵ = 2¹⁷
2-⁴ · (8²)-⁴ 2-⁴ · 8-⁸ 2-⁴ · 2 -¹¹ 2-¹⁵
Proszę o Naj , bo trochę mi to zajęło :D