Math, asked by shadabraza647, 2 days ago

for an A.P,if t7= 4 D= - 4 then a =?
(A) 8
(B) 7
(C) 20
(D) 28

Answers

Answered by ombirajdar34

2

Answer:

28

Step-by-step explanation:

tn = a + (n-1) d

t7 = a + (7-1 ) -4

4 = a + 6 × (-4)

4 = a - 24

a = 28

please give brilliant answer

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