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√162,5=√(1625/10)=√(5³/10)=5√(5/10)=5√(1/2)=5/√2=5√2/2 √100,25=√(10025/100)=√10025/√100=5√401/10=√401/2
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√162,5=√(1625/10)=√(5³/10)=5√(5/10)=5√(1/2)=5/√2=5√2/2 √100,25=√(10025/100)=√10025/√100=5√401/10=√401/2