Q. 135.0( 1 Vote )

# If a, b, c are in

As a,b,c are in GP

Note:

1. In general, the GP series is like a,ar,ar2……….

2. In this, b = ar and c = br = ar2

So we proceed forward with the aim to equalize LHS and RHS of the equation to be proved using the above ideas.

L.H.S = LHS = LHS = Now

R.H.S = RHS = RHS = 1/r

Clearly we observed that,

LHS = RHS = (1/r) …Proved

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