if n term of A. P is An=4-7n find the sum of first 20th term
Answers
Answered by
0
Answer:
-136
Step-by-step explanation:
lf an=4-7n
so a20=4-7(20)
a20=4-140
a20=-136
Attachments:
Similar questions
Science,
4 months ago
Math,
4 months ago
Social Sciences,
8 months ago
English,
11 months ago
Science,
11 months ago