Ta có:
|x - 3|2 \(\ge\) 0; |x - 3| \(\ge\) 0
Mà |x - 3|2 + |x - 3| = 0
=> |x - 3|2 = |x - 3| = 0
=> x - 3 = 0
=> x = 3
Ta có:
|x - 3|2 \(\ge\) 0; |x - 3| \(\ge\) 0
Mà |x - 3|2 + |x - 3| = 0
=> |x - 3|2 = |x - 3| = 0
=> x - 3 = 0
=> x = 3
tim so nguyen x de phan so sau la so nguyen x+3/x-2
1.Tim cac chu so x va y de so 1x8y2 chia het cho 36
2.tim cac gia tri nguyen cua n de phan so A=3.n+2/n-1 co gia tri la so nguyen
3.tim cac chu so x y thoa man
(x-2)^2.(x-3)^2=4
4.tim so tu nhien x biet
(x-5):3/100=20.x/100 +5
A = 2/ x-1 .tim dieu kien cua x de A la phan so . tim A khi x = 2 ; x = -3. tim dieu kien cua x de A la so nguyen ( A thuoc Z )
tim so nguyen x de cac phan so sau la so nguyen a) 13:x-1 b)x+3:x-2 c) 2.x:x+2
tim so nguyen x de 2n+1/x-3 co gia tri la 1 so nguyen
1,tim cac so nguyen x,y biet: -2/x=y/3 va x<0<y
2, Tim cac so nguyen x,y biet:x-3/y-2=3/2 va x-y=4
tim cac so nguyen de tong sau la so nguyen:
a, x+1/x+3+x+12/x+13
tim x de x/x-3 la mot so nguyen
Tim x nguyen de phan so sau la so nguyen
4x-1/3-x