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Let l, m and n are three distinct number...

Let l, m and n are three distinct numbers in arithmetic progression. Also `l^(2)`, `m^(2)` and `n^(2)` are in geometric prgression and `l+m+n=3`. If `l lt m lt n`, then n is equal to

A

1

B

`1-sqrt2`

C

`1+sqrt2`

D

`2+sqrt5`

Text Solution

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The correct Answer is:
C
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