In an Ap. if the common difference*(d)= -4 and the seventh term (a7) is 4 then. find the first tern
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seventh term is 4
d = -4
then
a(7)= a +(6)-4 = 4
a +(6)-4 = 4
a-24=4
a = 28
d = -4
then
a(7)= a +(6)-4 = 4
a +(6)-4 = 4
a-24=4
a = 28
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