`(sqrt(2) + 1/sqrt(2))^2` is equal to : Options: A . &nbsp`2 1/2` B . &nbsp`3 1/2` C . &nbsp`4 1/2` D . &nbsp`5 1/2`

`(sqrt(2) + 1/sqrt(2))

Question

`(sqrt(2) + 1/sqrt(2))^2` is equal to :

Options:

A . `2 1/2`

B . `3 1/2`

C . `4 1/2`

D . `5 1/2`

Answer: Option C

`(sqrt(2) + 1/sqrt(2))^2` = `(sqrt(2))^2 + (1/sqrt(2))^2 + 2 xx sqrt(2) xx 1/sqrt(2)` = 2 + `1/2` + 2 = 4+ `1/2` = `4 1/2`

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