In the following A.P., find the missing terms:

– 4, □,□,□,□, 6

Here, a = –4, n = 6 and l = 6

We have,

l = a + (n – 1)d

⇒6 = –4 + (6 – 1)d

⇒6 = –4 + 5d

⇒10 = 5d

So, the missing terms are –

a₂ = a + d = –4 + 2 = –2

a₃ = a + 2d = –4 + 2(2) = –4 + 4 = 0

a₄ = a + 3d = –4 + 3(2) = –4 + 6 = 2

a₅ = a + 4d = –4 + 4(2) = –4 + 8 = 4

Hence, the missing terms are –2, 0, 2 and 4