Question

In an AP if D = -4 and n = 7 and an = 4 then a = ?

Answer 1

HEY MATE YOUR ANSWER IS HERE..

★ GIVEN ★

an = 4

d = -4

n = 7

by formula

an = a + ( n - 1)d

4 = a + ( 7 - 1 ) ( -4)

4 = a + ( 6 ) ( -4 )

4 = a - 24

a = 28

THANKS FOR UR QUESTION HOPE IT HELPS

Answer 2

Step-by-step explanation:

$an = -4 \\ d = - 4 \\ n = 7 \\ an = a + (n - 1)d \\ 4 = a + 6 \times - 4 \\ a = 24 + 4 = 28 \\ \\ hope \: it \: help \: uh$