if the 3rd term and 6th term of ap are 7 and 13 find the 20th term
Answers
Answered by
0
Answer:
9
Step-by-step explanation:
Answered by
1
Answer:
41
Step-by-step explanation:
third term = a + 2d = 7
sixth term = a + 5d = 13
by solving , 3 d = 6
d = 2
so, a = 3
20th term = a + 19 d
= 3 + 19 × 2
= 41
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