find the sum of -1,1/4,3/2 (10 terms)
Answers
Answered by
7
Answer:
Step-by-step explanation:
a = 1
d = 1/4 - 1 =-3/4
sn= n/2{2a + (n - 1)d }
= 10/2 {2+(9)-3/4}
= 5{2+(-27/4)}
=5{-19/4}
= -95/4 =23.8(APPROX .)
Answered by
0
Answer:
-95/4 =23.8
Step-by-step explanation:
a = 1
d = 1/4 - 1 =-3/4
sn= n/2{2a + (n - 1)d }
= 10/2 {2+(9)-3/4}
= 5{2+(-27/4)}
=5{-19/4}
= -95/4 =23.8
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