If in a progression a1, a2, a3,............

If in a progression `a_1, a_2, a_3,.......... e tc dot,(a_r-a_(r+1))` bears a constant ratio with `a_rxxa_(r+1)` , then the terms of the progression are in a. A.P b. G.P. c. H.P. d. none of these

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If in a progression `a_1, a_2, a_3,.......... e tc dot,(a_r-a_(r+1))` bears a constant ratio with `a_rxxa_(r+1)` , then the terms of the progression are in a. A.P b. G.P. c. H.P. d. none of these

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