Which term of the ap 84,80,76 is 0?
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Answered by
11
Answer:
We know that Tn = a + (n-1)d
= 84 + (n-1) *(-4) = 0
= 84 - 4n + 4 = 0
= 88 - 4n = 0
n = 88/4
= 22
Hope this helps!
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2
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Answer:
22nd term
Step-by-step explanation:
The arithmetic sequence is given as
84,80,76....
We have
a = 84
d = 80-84 = -4
We have to find the term which is zero in the A.P. i.e.
General form of an A.P. is given by
an = a + (n-1)d
Substituting the known values, we get
0 = 84 + (n-1)(-4)
0 = 84 - 4n + 4
4n = 88
n = 22
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