Question

In an AP if d = -4,n=7, nth Term=4,find a.
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Answer 1

Answer:

d=-4 , n=7 ,tn=4, a=?

Step-by-step explanation:

tn = a +(n-1)d

4=a+(7-1)-4

4=a+(6)-4

4=a-24

a= 4+24

a=28

Ans: a=28