Question

In an AP, If an= 4, d=-4 and n=7 then find a
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Answer 1

Answer:

IT'S an = a + (n-1)×d

4 = a + (7-1)× -4

4 = a - 24

a = 28.

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Answer 2

Answer:

as given

an=4

a=4/n

a=4/7