Math, asked by lucky7841, 1 year ago

classify the number as rational or irrational 2 minus root 5

Answers

Answered by ZishanMujawar
0

Answer:

Step-by-step explanation:

Root 5 is irrational

Hence, 2 - √5 is irrational

Answered by brainiac16
2

√5 is irrational then a/ b are integers and co prime where b is not equal to 0

a/b = 2-√5

a/b -2 =-√5

a-2b/b =-√5

-a+2b/b =√5

now as a and b are integers so -a+2b/b is rational number but √5 is irrational

rational is not equal to irrational

2-√5 is irrational number

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