4. Identify the pairs of co prime numbers.
(a) 15 and 50
(b) 21 and 79 (c) 3 and 21 (d) 64 and 87
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Step-by-step explanation:
How do you find a pair of co prime numbers?
The sum of any two co-prime numbers are always co-prime with their product: 2 and 3 are co-prime and have 5 as their sum (2+3) and 6 as the product (2×3). Hence, 5 and 6 are co-prime to each other. Two even numbers can never form a coprime pair as all the even numbers have a common factor as 2.
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Answer:
b... 21and 79 se 64and 87
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