Tuyển Cộng tác viên Hoc24 nhiệm kì 26 tại đây: https://forms.gle/dK3zGK3LHFrgvTkJ6
cong phan thuc
a)x2+2/x2+4+5/x+2
b)x+y/2+x+2/2x2+4
c)8/(x2+3)(x2-1)+2/x2+3+1/X+1
cong phan thuc
x+y/2+x+2/2x2+4
cong phan thuc
x+y/2(x-y)+2y2/y-x
Cho x thoa man:\(\frac{x}{x^2+x+1}\)=\(\frac{1}{4}\)
Tinh gia tri cua M=\(\frac{x^5-x^4-2x^3+11x+4}{x^4+x^3-6x^2-7x+5}\)
cong phan thuc
x2+2/x2+4+5/x+2
c/m dang thuc : (x^2 +3xy)/(x^2 - 9y^2) + (2x^2 -5xy-3y^2)/(x^2-6xy+9y^2)= (3x^2 +2xy+3xz +6yz)/(xz -3yz +z^2-3xy)
cong phan thuc
8/(x2+3)+7/x
Chứng minh đẳng thức
\(\dfrac{1}{1-x}+\dfrac{1}{1+x}+\dfrac{2}{1+x}+\dfrac{4}{1+x^4}+\dfrac{8}{1+x^8}+\dfrac{16}{1+x^{16}}=\dfrac{32}{1-x^{32}}\)
Các bạn giúp mk nha
16+x/x^2- 2x+ 18/ 2x-x^2
2y/2x^2+4x/xy_2x^2
4-x^2/ x-3+ 2x-2x^2/3-x+ 5-4x/x-3
