Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

222-9+11+12:2*14+14 = ? ( )

Toán Lớp 9: Tính a/ √0,52 b/ √(√3−2)2 c/ √(5−√20)2

Toán Lớp 9: Tính
a/ √0,52
b/ √(√3−2)2
c/ √(5−√20)2

Comments ( 1 )

  1. Giải đáp + Lời giải và giải thích chi tiết:
    $\text{a)}$ $\sqrt[]{0,52}$ 
    $=$$\sqrt[]{\frac{13}{25}}$
    $=$$\frac{\sqrt[]{13}}{5}$
    $————$
    $\text{b)}$ $\sqrt[]{(\sqrt[]{3}-2)²}$ 
    $=$ |$\sqrt[]{3}$ $-$ $2^{}$|
    $=$ $2^{}$ $-$ $\sqrt[]{3}$
    $————$
    $\text{c)}$ $\sqrt[]{(5-\sqrt[]{20})²}$ 
    $=$ $\sqrt[]{(5-2\sqrt[]{5})²}$ 
    $=$ ${5-2\sqrt[]{5}}$
    $#Sherry2007#$

    toan-lop-9-tinh-a-0-52-b-3-2-2-c-5-20-2

Leave a reply

222-9+11+12:2*14+14 = ? ( )