tim cac so tu nhien n de cac phan so sau viet duoc duoi dang phan so thap phan:a,n+2/300 b,11.(n-1)/924
Cho phan so A = \(\frac{10n-3}{4n-10}\)n\(\varepsilon N\)
a,tim n khi A=\(\frac{27}{2}\)
b,tim dieu kien cua n de A rut gon duoc
viet cach giai ra gum minh nha
tim cac phan so toi gian biet tich cua tu va mau la 220 va phan so co the viet dc duoi dang so thap phan
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 )
Cho A=n+3/n+2 voi n€z
a)tim dieu kien cua so nguyen n de A la phan so
b)tinh gia tri cua phan so A khi n=1;n=-1
c)tim so nguyen n de phan so A co gia tri la so nguyen
tim dieu kien cua N thuoc N de cho so 10^n -1 chia het cho 9 va 11
GIÚP MÌNH NHÉ !
Doi ra met(viet ket qua duoi dang phan so thap phan roi duoi dang so thap phan)
3dm,85cm,52mm
cho to hoi nhaaa????
viet dang dung cua so tu nhien co hai chu so duoi dang so thap phan
CHO PS \(\frac{n+19}{n+6}\left(n\in N\right)\)
A , tim gia tri cua n de ps co gia tri la so tu nhien
B, tim gia tri cua n de ps toi gian
giup minh vs
