Q. 85.0( 1 Vote )

# The sum of 10 ter

Let S = √2 + √6 + √18 + ……….

It can also be written as,

S = √2(1 + √3 + 3 + 3√3 + …….)

Now,

1 + √3 + 3 + 3√3 + …… is a G.P with common ratio √3

Sum of the 10 terms will be given by,    S10 = 121(√6 + √2)

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