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4/3+căn5 - 8/1+căn5 +15/căn5
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4/3+căn5 - 8/1+căn5 +15/căn5

User Corby
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Answer:


A= (4)/(3 + √(5) ) - (8)/(1 + √(5) ) + (15)/( √(5) )


= (4(3 - √(5)) )/(4) - (8(1 - √(5) )/( - 4) + (15 √(5) )/(5) = 3 - \sqrt{5 + 2 - 2 \sqrt{5 + 3 √(5 = 5) } }

Explanation:


Cảm \: ơn!!!!

User Marco Seiz
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