Question

Write `t_(2)` and `t_(3)` for the A.P., if
(i) a=11,d=2 (ii) a= -7, d= - 5

Answer 1

(i) `t_(2) = t_(1) + d = 11+2 = 13 `
`t_(3) = t_(2) + d = 13+2 = 15 `
(ii) `t_(2) = t_(2) + d = - 7+ ( -5)`
`= -7 -5 = -12`
`t_(3) = t_(2) + d= -12 + ( - 5)`
`= - 12 -5= - 17`