1.

Let a, b, c are non-zero real numbers such that1a,1b,1c are in arithmetic progressionand a, b, -2c are in geometric progression, then which of the following statement(s) must be true?

Answer» Let a, b, c are non-zero real numbers such that1a,1b,1c are in arithmetic progressionand a, b, -2c are in geometric progression, then which of the following statement(s) must be true?


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