WTF!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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1,Tim so tu nhien N;
A,4n + 3 : 2n + 6
B,3n : 5 - 2n
Tim so tu nhien n sao cho
(n+2) chia het cho (n+1)
(2n+7) chia het cho (n+1)
3n chia het cho (5 * 24)
(4n+3) chia het cho (2n-6)
(2n+1) chia het cho (6-n)
Tim n: 3n+1chia hết cho n+2
4n-5 chia hết cho 2n-1
cho bieu thuc :A=2n+1/n-3+3n-5/n-3-4n-5/n-3.a, tim n de a nhan gia tri nguyen .b,tim n de a la phan so toi gian
Tìm n ϵ Z sao cho n là số nguyên
\(\dfrac{2n-1}{n-1};\dfrac{3n+5}{n+1};\dfrac{4n-2}{n+3};\dfrac{6n-4}{3n+4};\dfrac{n+3}{2n-1};\dfrac{6n-4}{3n-2};\dfrac{2n+3}{3n-1};\dfrac{4n+3}{3n+2}\)
cho bieu thuc:P= 2n+1/n-3 + 3n-5/n-3 + 4n-5/n-3
a) tim n de P nhan gia tri nguyen
b)tim n de P la phan so toi gian
1) Cho bieu thuc : A= 2n +1 /n-3 + 3n-5/ n-3 - 4n-5 /n-3
a)Tim so nguyen n de A nhan gia tri nguyen
b) Tim n de A la phan so toi gian
Tim so tu nhien n de phan so A=\(\frac{2n+1}{n-3}+\frac{3n-5}{n-3}-\frac{4n-5}{n-3}\)
a/Tim n de A nhan gia tri nguyen
b/Tim n de A la phan so toi gian
Tim so tu nhien n sao cho:
a)n+2 chia het cho n-1
b)2n+7 chia het cho n+1
c)2n+1 chia het cho 6-n
d)3n chia het cho 5-2n
e)4n +3 chia het cho 2n+6