1. Oblicz:
a) (1+√2)²+(1-√2)²=
b) (√3-1)²-(2-√3)²=
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(√3 - 1)² - (2 - √3)² = 3 - 2√3 + 1 - (4 - 4√3 + 3) = 4 - 2√3 - 4 + 4√3 - 3 = 2√3 - 3
a) 6
b) 0,4641016151