Write the first 5 terms of an arithmetic sequence with the given conditions.
1. 1 = 13, d = -3 __________________
2. 2 = 3, d = 1 __________________
3. 3 = 9, d = 2 __________________
4. 1 = 9, d = − 3 4 __________________
5. 2 = -12, d = 12 __________________
1. 1 = 13, d = -3 __________________
2. 2 = 3, d = 1 __________________
3. 3 = 9, d = 2 __________________
4. 1 = 9, d = − 3 4 __________________
5. 2 = -12, d = 12 __________________
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Answer:
an= a1 (n-1) d
a5=13 + (5-1) -3
a5= 13 + (4) (-3)
a5= 13 + -12
a5= -9