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Which of the following squences are A.P.? If they are A.P. find the common difference -10, -6, -2, 2,…

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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


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