Math, asked by roshini6753, 1 year ago

If a, b, c are in A. P. and in G. P. Both, prove that a=b=c.

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Answered by chunu2

1

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kvnmurty: Simpler method. ...a+c=2b...ac = b^2... (a-c)^2 = (a+c)^2 - 4ac = 4b^2 - 4b^2 = 0... So a = c.

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