Các câu hỏi tương tự
tinh gia tri bieu thuc sau
x2 + x^4 + x^6 + x^*+ . . .+x^100 tai x= -1
tim gtnn cua bieu thuc sau (x^2 -9x)^2+ |y-2 | +10
tinh gia tri bieu thuc E = x^10 - 2014 x^9 -2014 x^8 - ... - 2014 x -1 biet x=2015
Cho bieu thuc A = \(^{x2+4x+3}\)
a Tinh gia tri bieu thuc tai x= \(\frac{-1}{2}\)
b Tinh gia tri x de bieu thuc A bang 0
tinh gia tri bieu thuc P=3x+x-y/x+4 voi x,y thoa man/x-2/+(y-1)^2=0
gia tri x đe bieu thuc co giá trị âm
E=\(\frac{x-2}{x-6}\)
tim cac gia tri nguyen cua x de bieu thuc sau nhan gia tri duong (x+1).(x-2)/x+6
thuc hien phep tinh roi tinh gia tri bieu thuc
x(x2-y)-x2(x+y)+y(x2-x)
tai x=2012
y=1/5
dang I. Tim gia tri bieu thucBai 5: Cho x - y 9, tinh gia tri cua bieu thucBfrac{4x-9}{3x+y}-frac{4y+9}{3y+x}(x khac -3y, y khac -3x)Bai 6: Hay viet cac da thuc duoi dang tong cua cac don thuc roi thu gon. tinh gia tri bieu thuc khi x-1, y1a,D4x(x+y)-5y(x-y)-4x^2 b,E(a-1)(x^2+1)-x(y+1)+(x+y^2-a+1)moi nguoi giup minh di hu hu
Đọc tiếp
dang I. Tim gia tri bieu thuc
Bai 5: Cho x - y =9, tinh gia tri cua bieu thuc
B=\(\frac{4x-9}{3x+y}\)-\(\frac{4y+9}{3y+x}\)(x khac -3y, y khac -3x)
Bai 6: Hay viet cac da thuc duoi dang tong cua cac don thuc roi thu gon. tinh gia tri bieu thuc khi x=-1, y=1
a,D=4x(x+y)-5y(x-y)-4x\(^2\) b,E=(a-1)(x\(^2\)+1)-x(y+1)+(x+y\(^2\)-a+1)
moi nguoi giup minh di hu hu
tinh gia tri bieu thuc sau: x^3+xy^2-x^2y-y^3+3 biet x-y=0