Question

Write whether2√45+3√20/2√5
simplification gives rational or irrational number
step by step​

Answer 1

Step-by-step explanation:

2√45+3/2×√2×2×5/√5

where 5 gets cancelled

2√45+3/2×√4

we know that,

√4=2

so,

2√45+3/2×2

2 gets cancelled again so,

2√45+3

hence it gives an irrational number

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