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The numbers 3, x and x + 6 form a G.P. F...

The numbers 3, x and x + 6 form a G.P. Find nth term.

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The correct Answer is:
`(i) 6, -2 (ii) 3 (2) ^(19) ; -3 (iii) 3 (2) ^( n-1); 3 (-1) ^( n-1)`
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