Math, asked by hummi1, 1 year ago

Prove that 2√3+√5 is an irrational number also check weather (2√3+√5) (3√3-√5) is rational or irrational.

Answers

Answered by shaafi
1
(2√3+√5)(3√3-√5)=(6×3-2×5×3+3×3×5-5)=43-12=31
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