Prove that 2 root3-5 is an irrational number Also check whether (2root3+5)(2root3-5)is rational or irrational - Maths - Real Numbers

Question

Prove that 2 root3-5 is an irrational number Also check whether
(2root3+5)(2root3-5)is rational or irrational

Pushandeep Sengupta · Accepted Answer

Dear student,
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Prove that 2 root3-5 is an irrational number. Also check whether (2root3+5)(2root3-5)is rational or irrational