Is√9+√45 irrational or rational
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=√9+√45
=√(3×3)+√(5×3×3)
=√3²+√(5×3²)
=3+3√5
We know that √5 is an irrational number.
(irrational number)(rational number)=irrational number
irrational number+rational number=irrational number
Hence √9+√45 is an irrational number.
=√(3×3)+√(5×3×3)
=√3²+√(5×3²)
=3+3√5
We know that √5 is an irrational number.
(irrational number)(rational number)=irrational number
irrational number+rational number=irrational number
Hence √9+√45 is an irrational number.
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