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Question
If x = `1/(sqrt2 + 1)` then (x + 1) equals to:
Options
2
`sqrt2`
`sqrt2 + 1`
`sqrt2 - 1`
MCQ
Solution
`sqrt2`
Explanation:
`"x" - 1/(sqrt2 + 1)`
⇒ `"x" = (sqrt2 - 1)/((sqrt2)^2 - (1)^2)`
= `sqrt2 - 1`
⇒ `"x" + 1`
= `sqrt2`
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Simplification (Entrance Exam)
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