Question

find the first 4 terms of an ap whose first term is minus 2 and common difference is -2

Answer 1

a = - 2

d = - 2


T1 = a = - 2

T2 = a + d = - 2 + (-2) = - 2 - 2 = - 4

T3 = a +2d = - 2 + 2(-2) = - 2 - 4 = - 6

T4 = a +3d = - 2 + 3(-2) = - 2 - 6 = - 8


First four terms are - 2, - 4, - 6, - 8