Question

given a=4 d=2 s=-14 find n and Sn​. fake ans will be reported!​

Answer 1

Answer:

HENCE,n=6 and sn=54.  mark it as brainiest. Please!

Step-by-step explanation:

We have a=4,D=2,An=14

an=a+(n-1)d

14=4+(n-1)2

(n-1)2=14-4

(n-1)2=10

(n-1)=10/2

(n-1)=5

N=5+1

N=6

Now , sn=n/2(a+an)

sn=6/2(4+14)

sn=3 X 18

sn=54

HENCE,n=6 and sn=54.

Answer 2

Answer:

refer the attachment above. Hope it helps u.