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CBSE Notes 2011-2012 » XI-Maths

# Infinite Series

## Find the values of p,if sum to infinity for the G.P. p,1,1/p,.....is25/4.

Find the values of p,if sum to infinity for the G.P. p,1,1/p,.....is25/4.

## One side of an equilateral triangle is 18 cm. The mid points of its sides are joined to form another...

One side of an equilateral triangle is 18 cm. The mid points of its sides are joined to form another triangle whose mid-points are joined again to form another triangle. This process is repeated infinitely. Find the sum of the perimeters of all the triangles.

## In an infinite G.P. each term is equal to twice the sum of all the terms which follow it and the sum...

In an infinite G.P. each term is equal to twice the sum of all the terms which follow it and the sum of

## The sum of an infinite G.P. is 6. If its first term is 2, find its common ratio.

The sum of an infinite G.P. is 6. If its first term is 2, find its common ratio.