Question

15. In an AP, given d = -4, n = 7, a = 4 then find a.
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Answer 1

pls give the question correctly

Step-by-step explanation:

Soo I found out an

Answer 2

$\sf\huge\underline{Question:}$

In an AP, given d = -4, n = 7, a = 4 then find an = ?

$\sf\huge\underline{Answer:}$

common difference (d) = -4

first term of AP (a) = 4 ; n = 7

$a_{n} = [a + (n - 1)d]$

$=[4 + (7 - 1) \times ( - 4)]$

$= [4 - 24 ] = - 20$

Required answer is -20

thanks to the other user for correcting me :D

Have a good evening!