Question

if the first term of an ap is -5 and the common difference is 2 then the sum of the first 6 term is

Answer 1

Answer:

0

Step-by-step explanation:

the a.p. series is

- 5 , - 3, -1 , 1 , 3 , 5,....

the sum of first 6 terms is. =. -5 -3 -1 +1 +3 +5. =0

Answer 2

Answer:

Hey Mate.....

It is Given that first term of an AP = a1 = -5

Common difference, d = 2

Using Sn Formula :

Sum of first 6 terms = S6 = n / 2 [ 2a + (n-1) d ]

= 6 / 2 [ 2 × -5 + (6 - 1 ) 2 ]

= 3 [ -10 + 10 ]

= 0

Since, S6 = 0 which is not possible.

Therefore, the above question is wrong.

Thanks :)