1.

If a, b, c are in G.P., then b = ……………A) ac B) \(\sqrt{ac}\)C) \(\cfrac{a+c}2\)D) a2c2

Answer»

Correct option is (B) \(\sqrt{ac} \)

\(\because\) a, b, c are in G.P.

\(\therefore b^2=ac\)

\(\Rightarrow\) \(b=\sqrt{ac} \)

Correct option is B) \(\sqrt{ac}\)



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