Write ten pairs of co-primes numbers which do not contain prime numbers.
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1
Step-by-step explanation:
The three zones of a river system include the source zone, the transition zone, and the floodplain zone: In the source zone, which contains mountain (headwater) streams, the water is shallow, cold, clear, and swiftly flowing.
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2
Step-by-step explanation:
Answer:
(a) 21 and 22 , 23 and 24
(c) 2,3,5,7,11,13,17,19,23,29
(d) 9
1 and 2 , 2 and 3 , 21 and 22 , 23 and 24 , 3 and 4
30 = 7 and 23
24 = 7 and 17
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