Hitunglah nilai a yang memenuhi perpangkatan √1/256 = a²
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Bab EksponensialMatematika SMP Kelas IX
√(1/256) = a²
√2⁻⁸ = a²
2^(-8/2) = a²
2⁻⁴ = a²
(2⁻²)² = a²
a = 2⁻²
a = 1/4
✓2pangkat-8 = a²
(2 pangkat-8) pangkat½ = a²
2pangkat-4 =a²
1/16 = a²
✓1/16 =a
¼ = a