Find r if (i) 3r+1, 7r, 10r+8 are in G.P...

Find r if (i) 3r+1, 7r, 10r+8 are in G.P., (ii) 2r, 4r+1, 6r+2 are in G.P.

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The correct Answer is:

(i) `2, -(4)/(19)` (ii) `-(1)/(2)`

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CHHAYA PUBLICATION-SEQUENCE AND SERIES-Exercise 9 C (Very Short Answer Type Questions)

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