tìm x
x/2+x/6+x/12+x/20+...+x/132=5 1/2
Tìm x biết (1/2+1/4+1/8+1/16):x=1/2+1/6+1/12+1/20+...+1/132
Tìm x biết (1/2+1/4+1/8+1/16):x=1/2+1/6+1/12+1/20+...+1/132
tìm x biết: \(\frac{\left(\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}\right)}{x}=\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+...+\frac{1}{132}\)
Tìm x biết \(\left(\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}\right)\div x=\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+...+\frac{1}{132}.\)
{ eq \f(x,2) } +{ eq \f(x,6) }+{ eq \f(x,12) }+{ eq \f(x,20) }+...+{ eq \f(x,132) } ={ eq \f(11,5) }
tim x
2*x+1/2*x + 6*x+1/6*x +12*x+1/12*x +20*x+1/20*x= 5.tìm x
d) 1x2x3x4x5 + 6x7x8x9x10 + 11x12x13x14x15 +...+2011x2012x2013x2014x2015 Bài 11. Tìm số chữ số 0 tận cùng của các tích sau: a) 1 x 2 x 3 x...x 126 b) 1 x 2 x 3 x ...x 625 c) 5 x 10 x 15 x 20 x ... x 2010 x 2015 d) 2 x 6 x 12 x 20 x 30 x ... x 870
Tìm x:
\(\frac{x}{2}\)+ \(\frac{x}{6}\)+ \(\frac{x}{12}\)+ \(\frac{x}{20}\)+ . . . + \(\frac{x}{132}\)= 5\(\frac{1}{2}\)
Tìm cả bài giải nữa nhé !
