1. 1, 4, 9, 16, 25, 36, 49
Rule: Adding odd number
2. 3, 5, 7, 9, 11, 13, 15
Rule: Adding 2
3. 20, 16, 12, 8, 4, 0, -4
Rule: Subtracting 4
Answer:
1)25,36,49
Rule:An=n*2
2)11,13,15
Rule:An=2n+1
3)4,0,-4
Rule:An=-4n+24
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Answers & Comments
1. 1, 4, 9, 16, 25, 36, 49
Rule: Adding odd number
2. 3, 5, 7, 9, 11, 13, 15
Rule: Adding 2
3. 20, 16, 12, 8, 4, 0, -4
Rule: Subtracting 4
Answer:
1)25,36,49
Rule:An=n*2
2)11,13,15
Rule:An=2n+1
3)4,0,-4
Rule:An=-4n+24