Which term of A.P. 84 , 80 , 76 .... is zero
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Answer:
a1 = 84 , a2 =76
d = 76-84 = -8
an = 0
a + (n -1)d = 0
84 +(n-1)-8 = 0
( n-1 ) -8 = -84
n -1 = -84/-8
n = 10.5 +1
n = 11.5
hey mate answer is 11.5 u can take it as 11
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