Ответы на вопрос:
1) √(16·81)=√1296=36.
2) √32/√2=(√2√16)/√2=√16=4.
3) √(2 14/25)=√(64/25)=√64/√25=8/5=1 3/5=1,6.
4) √(√625)=√25=5.
5) √(4-√7)·√(4+√7)=√(4-√7)(4+√7)=√(16-7)=√9=3.
1) 36
2) 16
3) 1.6
4) 5
5) 3
Объяснение:
1. √___*(16·\*81)=√___1296=36
2. √___32/√___2=(√___2√___16)/√___2=√___16
3. √___*(2 14/25)=√___64/25=√___64/√___25=8/5=1 3/5=1.6
4. √___*(√___625)=√___25=5
5. √___*(4-√___7)*√___*(4+√___7)=√___*(4-√___7)*(4+√___7)=√___*(16-7)=√___9=3.
У №5 сомневаюсь...
1) 4^(1/2) = 2 = log3(log2(x)) 3^2 = 9 = log2(x) 2^9 = 512 = x ответ: 512 2) log4 x - 1/2log4 x = 1/4log4 x - log4 x^1/2 = 1/4 log4 (x/x^1/2)=1/4 log4 x^1/2=1/4 4^1/4=x^1/2 2^(2*1/4)=x^1/2 2^1/2=x^1/2 x=2
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