classify the number as rational or irrational 2 minus root 5
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Answer:
Step-by-step explanation:
Root 5 is irrational
Hence, 2 - √5 is irrational
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√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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