Question

Which term of the AP is zero , the AP is 18 , 15 , 12 ,
4
2.
26
6
27 ​

Answer 1

Answer:

the 7th term of AP is zero

Step-by-step explanation:

1st term of AP a = 18

common difference d = 15-18= -3

nth term of the AP= a+(n-1)*d

Let the xth term of the AP to be zero.

So, a+(x-1)d = 0

or, 18 + (x-1)*(-3)=0

or, 18 - 3x +3 =0

or, -3x = -21

Or, x= 7

Ans. The 7th term of the AP is 0.

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