Find the 10th term from the end of AP -15,-13,-11_ _ _ _ _33.
Answers
Answer:
The 10th term from the end of A.P. = 18
Step-by-step explanation:
∵ nth term from the end of an A.P. = {l - (n -1)d}
where, l ----> last term of the A.P.
d -----> Common difference
∴ l = 33
and, d = (2nd term - first term)
= {-13 - (-15)}
= (-13 + 15)
= 2
∴ 10 th term from the end of the A.P. = {33 - (10 - 1) x 2}
= 33 - (9 x 2)
= 33 - 18
= 15
∴ 10th term from the end of the A.P. = 15
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