if an =4-3n, find the sum of 8 terms
Answers
Answered by
1
Step-by-step explanation:
a1=4-3 =1
a2 = 4-6 =-2
a3=4-9 =-5
a=1 , d=-3
sum = 8/2(2×1+(7×-3))
=4×-19
=-76
Similar questions