1) Cho bieu thuc A=\(3+\frac{2}{x-1}\). Tinh gia tri cua bieu thuc A khi |2x-3|=1  

2) Rut gon bieu thuc B=\(\frac{x}{x-1}\)-\(\frac{x-5}{x+1}\)-\(\frac{3-x}{1-x^2}\)

3) Tim cac gia tri nguyen cua x de bieu thuc \(\frac{B}{A}\)co gia tri nguyen duong

Tinh hop ly gia tri cac bieu thuc sau

c) \(6\frac{5}{12}:2\frac{3}{4}+11\frac{1}{4}.\left(\frac{1}{3}-\frac{1}{5}\right)\)

d) \(\left(\frac{3}{5}+0,415-\frac{3}{200}\right).2\frac{2}{3}.0,25\)

1) Tinh gia tri cua bieu thuc:

A=\(\frac{\left(1+2+...+100\right)\left(\frac{1}{2}-\frac{1}{3}-\frac{1}{4}-\frac{1}{5}\right)\left(2,4.42-21.4,8\right)}{1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{100}}\)

B=\(\frac{4^6.9^5+6^9.120}{-8^4.3^{12}+6^{11}}\)

Tinh hop ly cac gia tri bieu thuc sau

a) \(4\frac{8}{23}+5\frac{7}{8}-9\frac{8}{23}\)

b)\(6\frac{3}{8}+5\frac{1}{2}\)

\(6\frac{1}{2}-2\frac{1}{3}:\frac{7}{15}\)

tinh gia tri bieu thuc

Tinh gia tri bieu thuc:

\(D=\left(\frac{3}{2}\right)^2+\left(\frac{1}{4}\right)^2-\left(\frac{1}{2}\right)^3\)

Cho 2 so thuc a, b thoa man dieu kien ab= 1, a+ b\(\ne\)0. Tinh gia tri bieu thuc :

P= \(\frac{1}{\left(a+b\right)^3}\left(\frac{1}{a^3}+\frac{1}{b^3}\right)+\frac{3}{\left(a+b\right)^4}\left(\frac{1}{a^2}+\frac{1}{b^2}\right)+\frac{6}{\left(a+b\right)^3}\left(\frac{1}{a}+\frac{1}{b}\right)\)

tinh gia tri bieu thuc

A = \(3+\frac{1}{1+\frac{1}{1+\frac{1}{1+\frac{1}{3}}}}\)

\(B=-5+\frac{1}{1-\frac{1}{2+\frac{1}{1-\frac{1}{4}}}}\)

Ai làm nhanh nhat minh tk cho

tinh gia tri bieu thuc a = \(\sqrt{4+\sqrt[3]{8}+\frac{2}{3}}+3^{10}\frac{1}{1\times2}+\frac{1}{2\times3}+...+\frac{1}{99\times100}\)