Question

prove that 11-root5 is an irrational number ​

Answer 1

Step-by-step explanation:

11 - √5

=> since √5 is irrational no. so

when an irrational no. is substrated from a real no. the resulted will be an irrational no only..

R - IR = IR

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Answer 2

Step-by-step explanation:

$\sqrt{5} \: is \: irrational \: number \: \\ therefore \: 11 - \sqrt{5 \: } is \: irrational \: number$

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