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Which of the following are APs? If they form an A.P. find the common difference d and write three more terms.(i) 2, 4, 8, 16 …(ii) (iii) − 1.2, − 3.2, − 5.2, − 7.2 …(iv) − 10, − 6, − 2, 2 …(v) (vi) 0.2, 0.22, 0.222, 0.2222 ….(vii) 0, − 4, − 8, − 12 …(viii) (ix) 1, 3, 9, 27 …(x) a, 2a, 3a, 4a …(xi) a, a2, a3, a4 …(xii) (xiii) (xiv) 12, 32, 52, 72 …(xv) 12, 52, 72, 73 … |
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Answer» Which of the following are APs? If they form an A.P. find the common difference d and write three more terms. (i) 2, 4, 8, 16 … (ii) (iii) − 1.2, − 3.2, − 5.2, − 7.2 … (iv) − 10, − 6, − 2, 2 … (v) (vi) 0.2, 0.22, 0.222, 0.2222 …. (vii) 0, − 4, − 8, − 12 … (viii) (ix) 1, 3, 9, 27 … (x) a, 2a, 3a, 4a … (xi) a, a2, a3, a4 … (xiii) (xiv) 12, 32, 52, 72 … (xv) 12, 52, 72, 73 … |
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