check (1+root 5 )-(4+root 5 ) as rational or irrational
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Answer:
Rational
Step-by-step explanation:
given (1+√5)-(4+√5)
by removing brackets it changes as
1+√5-4-(+√5)
=1+√5-4-√5
√5 and √5 can each other so it changes as
=1-4
=-3
As -3 is rational number (1+√5)-(4+√5) is also rational.
I hope you are satisfied by my answer.