Math, asked by alinaaz81, 10 days ago

Which of the following pairs is a pair of co-primes? a. 9, 72 b. 12, 36 c. 4, 9 d. 5, 20

Answers

Answered by aslene

1

Answer:

c.4,9

Step-by-step explanation:

9=3×3×1

4=2×2×1

co prime should have HCF as 1

so, option (c) is the answer

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