find the next sequence
2) 1, 4, 9, 16 , ________ , ________
Rule: _______________________
3) 5, 3, 1, -1, _________, _________
Rule: ________________________
4) 10, 15, 20, 25, ________, _________
Rule: _______________________
5) 1, 5, 9, 13, _________, _________
Rule: ______________
2) 1, 4, 9, 16 , ________ , ________
Rule: _______________________
3) 5, 3, 1, -1, _________, _________
Rule: ________________________
4) 10, 15, 20, 25, ________, _________
Rule: _______________________
5) 1, 5, 9, 13, _________, _________
Rule: ______________
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Answer:
2) 1, 4, 9, 16, (25), (36), (49)
Rule: squares of natural numbers
1x1 = 1
2x2= 4
3x3= 9
4x4= 16
5x5= 25
6x6= 36
7x7= 49
3) 5, 3, 1, - 1, (-3), (-5), (-7)
Rule : subtracted by 2
5-2= 3
3-2= 1
1-2= - 1
-1-2= - 3
-3-2= - 5
-5-2= - 7
4) 10, 15, 20, 25, (30), (35), (40)
Rule: added by 5
10+5= 15
15+5= 20
20+5= 25
25+5= 30
30+5= 35
35+5= 40
5) 1, 5, 9, 13, (17), (21), (25)
Rule: added by 4
1+4= 5
5+4= 9
9+4= 13
13+4= 17
17+4= 21
21+4= 25