Which of the following are Aps? If they form an AP, find the common difference d and write the next three terms.
(i) 24m,8m,16m,…..
(ii) `-1.2, -3.2, -5.2, -7.2`,……..

Answer

(i) Not AP
(ii) AP, next three terms =4 `,9/2, 5`
(iii) AP, next three terms `=-9.2, -11.2, -13.2`
(iv) AP, next three terms =6,10,14
(v) AP, next three terms `=3+4sqrt(2), 3+5sqrt(2), 3+6sqrt(2)`
(vi) Not AP
(vii) AP, nesxt three terms `=-16, -20, -24`
(viii) AP, next three terms `=-1/2, -1/2, -1/2`
(ix) Not AP
(x) AP, next three term = 5a, 6a, 7a
(xi) Not AP
(xii) AP, next three terms `=sqrt(50), sqrt(72), sqrt(96)`
(xiii) Not AP