How many terms of the A.P. 18,16,14 .......be taken so their sum is zero?
Answers
Answered by
15
A=18
D=16-18
=-2
Ap=a+(n-1)d
0 =18+(n-1)×(-2)
-18=(n-1)(-2)
9=n-1
N=10
Ans is 10
D=16-18
=-2
Ap=a+(n-1)d
0 =18+(n-1)×(-2)
-18=(n-1)(-2)
9=n-1
N=10
Ans is 10
Answered by
5
the following ap is 10 terms
Similar questions