znajdź b
b²+b²=a²
poproszę krok po kroku
2b² = a² /:2
b² = a²/2 /√
b = √(a²/2)
b = a/√2 * √2/√2
b = a√2 / 2
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b²+b²=a²
2b² = a² /:2
b² = a²/2 /√
b = √(a²/2)
b = a/√2 * √2/√2
b = a√2 / 2