Question

In an A.P., a = 10 and d = –3, then find its first four terms.

Answer 1

a = 10, d = –3   ...[Given]

t₁ = a = 10

t₂ = t₁ + d

= 10 – 3

= 7

t₃ = t₂ + d

= 7 – 3

= 4

t₄ = t₃ + d

= 4 – 3

= 1

∴ The first four terms of A.P. are 10, 7, 4, 1.