Question

find the positive square root of 9-2 √3-2√5+2√15
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Answer 1

Answer:

=(√2)^2+(√3)^2+(√5)^2+2√2*√3+2√2*√5 +2√3*√5. Comparing with the form (a^2+b^2 +c^2+2ab+2bc+2ca)=(a+b+c)^2. We get the ...