which of the following is an irrational number? a.√12/√ 3 b.√18/2 c.√45/5 d.√42/7
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Answer:
d. √42/7
Step-by-step explanation:
√12/√3 = √4 = 2. It is a rational number.
√18/2 = √9 = 3. It is also a rational number.
√45/5 = √9 = 3. It is a rational number.
√42/7 = √6. It is an irrational number.
Therefore, option (d) is correct.
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