\(\left(x+1\right)+\left(x+2\right)+\left(x+3\right)+\left(x+4\right)+\left(x+5\right)=55\)
c)\(\left(x+1\right)+\left(x+2\right)+\left(x+3\right)+\left(x+4\right)+\left(x+5\right)=90\)
d)\(\left(x+1\right)+\left(x+2\right)+\left(x+3\right)+.....+\left(x+99\right)+\left(x+100\right)+=20150\)
Tìm x:
a, \(\left(x+1\right)+\left(x+3\right)+\left(x+5\right)+\left(x+7\right)+\left(x+9\right)=75\)
b, \(\left(x+1\right)+\left(x+6\right)+\left(x+11\right)+...+\left(x+31\right)+\left(x+36\right)=288\)
Tìm x :
\(\left(x+9\right)+\left(x-2\right)+\left(x+7\right)+\left(x-4\right)+\left(x+5\right)+\left(x+6\right)+\left(x+3\right)+\left(x-8\right)+\left(x+1\right)=95\)
Tìm x,y biết :
a) \(\left(x-\frac{2}{5}\right)^{2010}\)+\(\left(y+\frac{3}{7}\right)^{468}\)\(\le0\)
B) \(\left(x+0,7\right)^{84}\)+ \(\left(y-6,3\right)^{262}\)\(\le0\)
c) \(\left(x-5\right)^{88}\)+\(\left(x+y+3\right)^{468}\)\(\le0\)
\(x+\left(x+1\right)+\left(x+2\right)+\left(x+3\right)+\left(x+4\right)+...+\left(x+100\right)=11000\)
\(\left(x+12,8\right)+\left(x+13,6\right)+\left(x+14,4\right)+\left(x-11,3\right)+\left(x-12,1\right)+\left(x-12,9\right)=1,5\times\)3
ghi lời giải ra nhé
\(\left(X+1\right)+\left(X+4\right)+\left(X+7\right)+\left(X+10\right)+...+\left(X+28\right)=155\)155
Hỏi X bằng mấy
Tĩm x:
1,\(\frac{1}{\left(x+1\right)\left(x+2\right)}+\frac{1}{\left(x+2\right)\left(x+3\right)}+\frac{1}{\left(x+3\right)\left(x+4\right)}+\frac{1}{\left(x+4\right)\left(x+5\right)}=\frac{1}{x+5}\)
2,\(\left(x+\frac{1}{1.3}\right)+\left(x+\frac{1}{3.5}+......+x+\frac{1}{23.25}\right)=11.x+\left(\frac{1}{3}+\frac{1}{9}+\frac{1}{27}+\frac{1}{81}+\frac{1}{243}\right)\)
Giải chi tiết hộ mình nha mình tik cho