If a, b, c are in G.P, show that b2 = ac. – InterviewSolution

1.

If a, b, c are in G.P, show that b2 = ac.

Answer»

Given, a, b, c are in G.P.

∴ \(\frac{b}{a}\) = \(\frac{c}{b}\)

\(\frac{a_{k+1}}{a_k}\) = constant

⇒ b² = ac

Hence proved

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