Question

calculați : a) (2+v3)la a 2 b) (1+v2)la a 2 3) (v5+2)la a 2 4) (2v3+1)la a doua​

Answer 1

Răspuns:

$(2 + \sqrt{3 } ) {}^{2} = 4 + 4 \sqrt{3} + 3 = 7 + 4 \sqrt{3}$

$(1 + \sqrt{2} ) {}^{2} = 1 + 2 \sqrt{2} + 2 = 3 + 2 \sqrt{2}$

$( \sqrt{5} + 2) {}^{2} = 5 + 4 \sqrt{5} + 4 = 9 + 4 \sqrt{5}$

$(2 \sqrt{3} + 1)^{2} = 12 + 4 \sqrt{3 } + 1 = 13 + 4 \sqrt{3}$