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Sum of an infinitely many terms of a G.P. is 3 times the sum of even terms. The common ratio of the G.P. is a. 1/2                     b. 2           c. 3/2            d. none of these

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  12. If sqrt(1+1/(1^2)+1/(2^2))+sqrt(1+1/(2^2)+1/(3^2))+sqrt(1+1/(3^2)+1/(4...

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  19. If x in R , the numbers 2^(1+x)+2^(1-x), b//2,36^x+36^(-x) form an A....

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