Question

Помогите пожалуйста!!

Answer 1

=I-0,5+√2I - (√2 - 1)^3 = √2 - 0,5 - (2*√2 - 3*2 +3*√2 -1) = - 4*√2 - 6,5

Answer 2

$1) sqrt{(0,5- sqrt{2})^{2}} = |0,5- sqrt{2}|$
$2) sqrt[3]{ (-1+ sqrt{2}) ^{3}} =(-1+ sqrt{2})^{ frac{3}{3}} = sqrt{2} -1$
$3) |0,5- sqrt{2}|- sqrt{2} +1= sqrt{2} -0,5+1- sqrt{2} =0,5$
$4) ( frac{1}{2})^{3} = frac{1}{8}$