Find the 21st term of the A.P. 7,11, 15, ……
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Answered by
1
Answer:
an= a+(n-1)d
an = 7+(21-1)4
an=7+80
an = 78
Answered by
3
Answer:
Answer:
an= a+(n-1)d
an = 7+(21-1)4
an=7+80
an = 78
Step-by-step explanation:
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