Question

-1, 1 /4 , 3 /2 ,............. , Sum to 10 terms =​

Answer 1

Answer:

have to be a great day to be a

Answer 2

Answer:

Sn=n/2(a+(n-1) d)

a=-1

n=10

d=5/4

Sn=10/2(-1+(9×5/4)

Sn=5(-1+45/4)

Sn=5×41/4

Sn=205/4