{ y + 1/3 } + { y + 1/9 } + { y + 1/27 } = 25/27
3y + 1/3 + 1/9 + 1/27= 25/27
3y+ 9/27+3/27+1/27= 25/27
3y + 13/27= 25/27
3y= 12/27
=> y= 4/27
{ y + 1/3 } + { y + 1/9 } + { y + 1/27 } = 25/27
3y + 1/3 + 1/9 + 1/27= 25/27
3y+ 9/27+3/27+1/27= 25/27
3y + 13/27= 25/27
3y= 12/27
=> y= 4/27
Tìm y biết: (y + 1/3) + (y + 1/9) + (y + 1/27) + (y + 1/81) = 56/81
1. Tìm y biết: 1 + 3 + 9 + 27 + … + y = 1093
Tìm y biết: (y + 1/3) + ( y + 1/9) + ( y + 1/27) + ( y + 1/81) = 56/81
giải hộ tớ nhé!
-^_^-
( y +1/3) + ( y + 1/9 ) + (y+1/27) + (y+1/81)= 56/81
Tìm y biết: \(\frac{y}{1+2}+\frac{y}{1+2+3}+....+\frac{y}{1+2+3+...+43+44}=\frac{27}{44}\)
Tim y biet :
( y + 1/3 ) + ( y + 1/9 ) + ( y + 1/27 ) + ( y + 1/81 ) = 56/81
1. Tìm y;
a. Y \ 3 = 27 \ Y b. 15 \ Y = Y \ 9
c,15\ 48 :y =10\4 d, 20\ y x 9 =60 \135
e , 16 \ Y = Y\9 g, 25 \ Y= Y \ 9
h, y- 12 \ 42 = 10 \ 12 i , y+5 \ 30 = 18\2
Giúp nha giúp nha . Giúp ik mik trả like. Ơ.Ơ , ^.^
Tìm Y , biết y-4873=(175x2-50x7):25+27
MÌNH ĐANG VỘI
a) (y+1/3)+(y+2/9)+(y+1/27)+(1/81)=56/81
b) (1/2+1/4+1/8+1/16):y=1/2+1/6+1/12+1/20+...+1/132