ki hieu [x] la so nguyen lon nhat khong vuot qua x .So nguyen x thoa man [7x-5/3]=-2
minh can gap dang thi cap truong
ki hieu [x] la so nguyen lon nhat khong vuot qua x .So nguyen x thoa man [7x-5/3]=-2
minh can gap dang thi cap truong
Cho tổng: S=a+a^2+a^3+a^4+.....+a^n
(n la so tu nhien, a khac -1. Voi gia tri nao cua n thi S chia het cho a+1)
Minh dang rat gap chieu nay phai nop bai roi giup minh voi nhe!
Minh cam on !
Ban nao lam dung va nhanh nhat minh tick cho
cho x thoa man dang thuc 3/4+1/4/x=2/5.vay 7x=
giup minh voi
Cho F(x)=a*x^3+b*x^2+c*x+d, trong do a,b,c,d la hang so va thoa man b=3a+c Chung to rang f(1)=f(-2)
Toi dang on thi hoc ki -Giup toi voi thank you very much
Cho F(x)=a*x^3+b*x^2+c*x+d, trong do a,b,c,d la hang so va thoa man b=3a+c Chung to rang f(1)=f(-2)
Toi dang on thi hoc ki -Giup toi voi thank you very much
a. Tim so tu nhien nho nhat sao cho khi chia no cho 17 thi du 5,con khi chia cho 19 thi du 11
b, Tim a thuoc N biet 355 chia a du 13, 836 chia a du 8
Giup minh voi nhe!!
Cho cac so thuc a, b, x, y thoa man x+y=a+b, xy=ab. Chung minh \(x^n+y^n=a^n+b^n\)voi moi so tu nhien n
gia tri x >0 thoa man x/3/50=2/3/xla x=
(nhap ket qua duoi dang phan so toi gian)
cac ban giup minh nha
