Question

Write first four terms of the A.P. when the first term a and the common differenced are given as follows `a = -1, d = 1/2`

Answer 1

a = - 1, `d = 1/2`

Let the series be a₁, a₂, a₃, a₄ …a₁ = a = -1

a₂ = a₁ + d = `-1 + 1/2 = -1/2`

a₃ = a₂ + d = `-1/2 + 1/2 = 0`

a₄ = a₃ + d = `0 + 1/2 = 1/2`

Clearly, the series will be `-1, -1/2, 0, 1/2`

First four terms of this A.P. will be `-1, -1/2, 0 `