Răspuns:
a) 101011=43
0 × 2⁷ + 0 × 2⁶+ 1 × 2⁵ + 0 × 2⁴ + 1 × 2³ + 0 × 2² + 1 × 2¹ + 1 × 2⁰=0 + 0 + 32 + 0 + 8 + 0 + 2 + 1=
32 + 8 + 2 + 1=
43
53 ≠ 43
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b) 101110=46
101101=45
46 > 45
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c) 11100=28
11110=30
28+30=58
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d) 1100=12
14+12=26
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e) 1011=11
27⁵:3¹³=(3³)⁵:3¹³=3¹⁵⁻¹³=3²=9
11 > 9
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f) 11011=27
110110=54
2·27=54
54=54
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g) 11001=25
25=5² → patrat perfect
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h) 11011=27
27=3³ → cub perfect
