2 years ago

Sq root of 2 minus 1 ÷ sq root of 2 plus 1

Mathematics

1 answer:

elena-s [515]2 years ago

7 0

√2 - 1 (√2 - 1)(√2 - 1)

--------- = ---------------------

√2 + 1 (√2 + 1)(√2 - 1)

2 + 1 - 2√2

= ---------------

2 - 1

= 3 - 2√2 Answer

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