1. (√5+√7)²= 2. 4/√2=
Matematika
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Pertanyaan
1. (√5+√7)²=
2. 4/√2=
2. 4/√2=
1 Jawaban
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1. Jawaban GTOnizuka
1. (√5+√7)²=
(a+b)² = a²+2ab+b²
Maka
(√5+√7)² = (√5)² + 2√5√7 + (√7)²
= 5 + 2√5√7 + 7
= 12 + 2√35
2. 4/√2
= √2x√2x√2x√2 / √2
= √2 x √2 x √2
= 2√2
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