Question

2-√2 supra√2-2√2-3supra√2-1-√2supra √2

Answer 1

(2-√2)√2 supra 2-(2√2-3)√2 sup.2-(1-√2)√2 sup 2,

2√2-2 sup.2- 4-3√2 sup.-√2-2 sup.2,

2(√2-1) sup 2-4-3√2 sup 2-√2-2 sup 2,

√2-1-(4-3√2sup 2-√2-2 sup 2...

Answer 2

(2-√2)/√2-(2√2-3)/√2-(1-√2)/√2=
rationalizand
[√2(2-√2)-√2(2√2-3) -√2(1-√2)]/2=
(2√2-2-4+3√2-√2+2)/2=(4√2-4)/2=2√2-2