Question

In an AP , if a = 28 , d = -4 , n= 7, then An is : * 1 point a)4 b )5 C)3 d)7

Answer 1

$given \: that \\ a = 28 \\ d = ( - 4) \\ n = 7 \\ we \: know \: that \\ an = a + (n - 1) \times d \\ an = 28 + (7 - 1) \times ( - 4) \\ = 28 \times 6 \times ( - 4) \\ = 28 - 24 \\ an = 4$

hence AN is 4