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प्रश्न
Simplify and express the result in power notation with positive exponent.
2−3 × (−7)−3
सोपे रूप द्या
उत्तर
2−3 × (−7)−3
= `1/2^3 xx 1/(-7)^3`
= `1/[2xx(-7)]^3` ...[∵ am . bm = (ab)m]
= `1/(-14)^3`
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