Question

(11) In an AP, if the common difference (d)=-4, and the seventh term (a7) is 4,
and then find the first term.​

Answer 1

❤️Given:

❤️A7= 4

❤️d= -4

❤️We know that ,

❤️an = a + (n-1)d

❤️A7 = a + (7-1)d

❤️4= a + 6(-4)

❤️4 = a -24

❤️4 + 24 = a

❤️28 = a

❤️Hence a = 28

❤️❤️I Hope it will help you

Thank s..❤️❤️