tìm x biết
\(\frac{x-17}{1990}+\frac{x-21}{1986}+\frac{x+1}{1004}\)
Tìm x biết :
\(\frac{x-17}{1990}+\frac{x-21}{1986}+\frac{x+1}{1004}=4\)
Mấy bn giúp mk nha ai đúng nhất định mk sẽ tk cho . cảm ơn các bn trc
Tìm x biết
a,\(x^2-4x+4=25\)
b,\(\frac{x-17}{1990}+\frac{x-21}{1986}+\frac{x+1}{1004}=4\)4
c,\(x^4-12\cdot2^2+32=0\)
tim x
9x-17)/1990+(x-21)/1986+(x+1)/1004=4
giải phương trình
(x- 17 / 1990 ) + (x- 21/ 1986 ) + (x +1/ 1004 ) = 4
a,((x-17)/1990)+((x-21)/1986)+(x+1)/1004=4
b,4^x-12*2^x+32=0
Giải PT\(\frac{x-29}{1986}+\frac{x-27}{1988}+\frac{x-25}{1990}+\frac{x-23}{1992}+\frac{x-21}{1994}+\frac{x-19}{1996}=\frac{x-1986}{29}+\frac{x-1988}{27}+\frac{x-1990}{25}+\frac{x-1992}{23}+\frac{x-1994}{21}+\frac{x-1996}{19}\)
cho \(\frac{x^4}{a}+\frac{y^4}{b}=\frac{1}{a+b};\) \(x^2+y^2=1\)cmr
a.\(bx^2=ay^2\)
b.\(\frac{x^{2018}}{a^{1004}}+\frac{y^{2018}}{b^{1004}}=\frac{2}{\left(a+b\right)^{1004}}\)
A=\(\frac{3012}{x^4-x^3+x-1}-\frac{1004}{x^4+x^3-x-1}-\frac{4016}{x^5-x^4+x^3-x^2+x-1}\)với x khác 1;-1
a, Tìm MTC.
b,Rút gọn A.
c, CM, A>0