Tuyển Cộng tác viên Hoc24 nhiệm kì 26 tại đây: https://forms.gle/dK3zGK3LHFrgvTkJ6
Tim y,biet:1/4 + y : 1/8 + y : 1/2 =140
Tim y biet : ( 1/2*4 + 1/4*6 + 1/6*8+ 1/8*10 ) * y = 1/3
(y+1/2)+(y+1/4)+(y+1/8)+(y+1/16)+...+(y+1/1024)=1
tim y biet :7/4-y*5/6=1/2+1/3
Tim y biet :
( y + 1/3 ) + ( y + 1/9 ) + ( y + 1/27 ) + ( y + 1/81 ) = 56/81
tim y biet (y+1)+(y+2)+(y+3)+ . . . +(y+9)+(y+10) =2012
tim y biet
( y+1)+(y+4)+(y+7)+(y+10)+...+(y+28)=155
3nguoi nhanh nhat mik se tick nhe!
Tim y biet:7/4-yx5/6=1/2=1/3
tim x,y biet
/ x+2/ +/y-1/=0
