Question

The sum of how many terms of the A.P
14,12,10 .....will be zera?​

Answer 1

Answer:

The sum of 15 terms of the A.P  14,12,10... will be ZERO

Step-by-step explanation:

Sum of n terms in A.P = $\frac{n}{2} [2a + (n-1)d]$

d = 12- 14 = 10 - 12 =  -2

a = 14

Sum = 0

$\frac{n}{2} [2(14) + (n-1)(-2)]$ = 0

n [28 - 2n + 2] = 0

n (30 - 2n) = 0

2n = 30

n = 30/2

n = 15

Answer 2

Answer:

number of terms = 15

Step-by-step explanation:

hope it helps