Răspuns:
Explicație pas cu pas:
1) (1-√3)² = 1²-2·1·√3 + (√3)² = 1-2√3+3 = 4-2√3
2) 4+2√3 = 4+2√3
32⁻² : 2⁻⁸ = (2⁵)⁻² : 2⁻⁸ = 2⁻¹⁰⁻⁽⁻⁸⁾ = 2⁻¹⁰⁺⁸ = 2⁻² = 1/4
6⁶·9⁻³ : 8 = 2⁶·3⁶·(3²)⁻³ : 2³ =
= 2⁶⁻³·3⁶⁻⁶ = 2³·3⁰ = 8
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Răspuns:
Explicație pas cu pas:
1) (1-√3)² = 1²-2·1·√3 + (√3)² = 1-2√3+3 = 4-2√3
2) 4+2√3 = 4+2√3
32⁻² : 2⁻⁸ = (2⁵)⁻² : 2⁻⁸ = 2⁻¹⁰⁻⁽⁻⁸⁾ = 2⁻¹⁰⁺⁸ = 2⁻² = 1/4
6⁶·9⁻³ : 8 = 2⁶·3⁶·(3²)⁻³ : 2³ =
= 2⁶⁻³·3⁶⁻⁶ = 2³·3⁰ = 8