Wwazne zadanie na jutro...pomocy.w
1. a)∛-135=-∛(27*5)=-3∛5
b)√128=√(64*2)=8√2
c)∛864=∛(216*4)=6∛4
2. a)(2/√2)*(√2/√2)=2√2/2=√2
b)9/2√3=9√3/2*3=(3√3)/2
c)(√2+√3)/2√2=(2+√6)/4
d)(√6+2√8)/√3=(√18+2√24)/3=(3√2+4√6)/3
3. a) √2/4=√2/√16=√⅛=2⁻³
b)√2*⁴√2=√(2*√2)=√√8=2 do ¼
c)√∛2=√(2 do⅓)=2 do ⅙
d)∛(2√2)=∛√(4*2)=2 do ½
4. a) 3 do⅓*(3²) do ⅓=3 do⅓*3do⅔=3
b) 64 do ⁻²/₃=∛(1/(64²))=¹/₁₆
c) 2⁻²*2 do³/₂*2 do½= 1
5. a) √(100-64)=√36=6
b) √(420+√441)=√(420+21)=√421=21
c) ∛-8/125-∛125/64=-2/5-5/4=-1¹³/₂₀
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1. a)∛-135=-∛(27*5)=-3∛5
b)√128=√(64*2)=8√2
c)∛864=∛(216*4)=6∛4
2. a)(2/√2)*(√2/√2)=2√2/2=√2
b)9/2√3=9√3/2*3=(3√3)/2
c)(√2+√3)/2√2=(2+√6)/4
d)(√6+2√8)/√3=(√18+2√24)/3=(3√2+4√6)/3
3. a) √2/4=√2/√16=√⅛=2⁻³
b)√2*⁴√2=√(2*√2)=√√8=2 do ¼
c)√∛2=√(2 do⅓)=2 do ⅙
d)∛(2√2)=∛√(4*2)=2 do ½
4. a) 3 do⅓*(3²) do ⅓=3 do⅓*3do⅔=3
b) 64 do ⁻²/₃=∛(1/(64²))=¹/₁₆
c) 2⁻²*2 do³/₂*2 do½= 1
5. a) √(100-64)=√36=6
b) √(420+√441)=√(420+21)=√421=21
c) ∛-8/125-∛125/64=-2/5-5/4=-1¹³/₂₀