Toán Lớp 7: |x–1/3|–√1/16–√1/9
Giúp mk với
Leave a reply
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.
Toán Lớp 7: |x–1/3|–√1/16–√1/9
Giúp mk với
Comments ( 1 )
| x – 1/3 | – sqrt{1/16} – sqrt{1/9}
<=> |x- 1/3| – 1/4 – 1/3
<=> |x – 1/3| – 7/12
<=> |x – 1/3| = 7/12
=> {{:(x – 1/3 = 7/12),( x – 1/3 = (-7)/12 ):}
<=> {{:(x = (11)/(12) ), ( x = (-1)/4 ):}
Vậy x in { (11)/(12) ; (-1)/4 }.