which term of the ap 84,80,76... is 0
Answers
Answered by
17
a = 84
d = 80-84 = -4 .
0 = 84 + ( n - 1 ) -4
-84 = -4n+4
-80 = -4n
n = 20 .
Therefore, 0 is the 20th term.
d = 80-84 = -4 .
0 = 84 + ( n - 1 ) -4
-84 = -4n+4
-80 = -4n
n = 20 .
Therefore, 0 is the 20th term.
Answered by
0
Answer:
20 th term.
Step-by-step explanation:
a=84. d=80-84 = -4.
0=84+(n-1)-4
-84=-4n+4
-80=-4n
-80/-4=n
20=n.
....
Answer is 20 th term.
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