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In a sequence of 21 terms first 11 terms...

In a sequence of 21 terms first 11 terms are in A.P. with common difference 2 and last 11 terms are in P with common ratio 2. If middle term of A.P. is equal to middle term of G.P. then, middle term in the complete sequence is 10 (1-211 B) 210-1 20 2 10 1-211 1-2 (C) 1024 + 10 (D) 210-1 a, b, c are real nymbers forming an A.P. and 3 a, 2+ b, 3+ c are in GP, then minimum value of

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