Các câu hỏi tương tự
Chung minh rang moi phan so dang n+1/2n+3 ( n thuoc N ) deu la phan so toi gian.
Cau 1: Chung minh rang cac phan so sau la phan so toi gian voi moi so nguyen?
a, 8n + 5 phan 6n + 4 b, n + 1 phan 2n + 3 c, 2n + 3 phan 3n + 5
Cau 2: Tim tat ca cac so tu nhien n de phan so sau la toi gian
a, n + 13 phan n - 2. b, 18n + 3 phan 21n + 7
Ai giai day du va nhanh thi mk se tick cho
chung to rang voi moi so nguyen n phan so 3n-5/3-2nla phan so toi gian
bai 1
a, chung to rang 2n+5/n+3, ( n thuoc N ) la phan so toi gian
b, tim gia tri nguyen cua n de B= 2n+5/n+3 co gia tri la so nguyen
bai 2
tim so tu nhien nho nhat sao khi chia cho 3 du 1 cho 4 du 2 cho 5 du 3 cho 6 du 4 va chia het cho 11
chung to rang moi phan so co dang 2*n+3/3*n+5 la phan so toi gian
tim cac so tu nhien n khac 0 de cac phan so sau la phan so toi gian
7/n-3
n+7/n+2
2n+16/n+5
3n+4/n3
chung minh rang moi phan so sau toi gian voi moi so tu nhien n:
a.n+1/2n+3 b.2n+3/4n+8
chung to rang phan so 2n+1/3n+2 la phan so toi gian
Chung to rang 3n - 5 phan 3 - 2n la phan so toi gian