zapisz w jak najprostszej postaci
a)√2(√5+2√5)
b)1/2√sześcienny 9(√sześcienny3+5√sześciennych3)
c)(1/2√2+1/4√2)^2
D)(3√sześcienne 2-√sześcienny2)^3
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
zapisz w jak najprostszej postaci
a)√2(√5+2√5) =
= √2*√5 + 2*√2*√5 =
= √10 + 2√10 =
= 3√10
b)1/2√sześcienny 9(√sześcienny3+5√sześciennych3)=
= ½*∛9 (∛3 + 5∛3) =
= ½*∛9*(6*∛3) =
= ½*6*∛3²*∛3 =
= 3*(∛3)²*(∛3) =
= 3*(∛3)³ =
= 3*3 =
= 9
c)(1/2√2+1/4√2)^2 =
= (2/4√2 + 1/4√2)² =
= (¾√2)² =
= (¾)²*(√2)² =
= 9/16 *2 =
= 9/8 =
= 1⅛
D)(3√sześcienne 2-√sześcienny2)^3=
= (3∛2 - ∛2)³ =
= (2∛2)³ =
= 2³*(∛2)³ =
= 8*2 =
= 16