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# Question and Answer

## QuestionMathsClass 11

If $$\frac{1}{\sqrt{b}+\sqrt{c}}$$$$\frac{1}{\sqrt{c}+\sqrt{a}}$$, $$\frac{1}{\sqrt{a}+\sqrt{b}}$$ are in A.P., then $${9}^{ax-1}$$, $${9}^{bx-1}$$, $${9}^{cx-1}$$ $$(x\ne\;0)$$ are in
a.A.P.
b.G.P.
c.H.P.
d.none of these

B
4.6
Review from Google Play
4.6
Review from Google Play