Question

tính : A=(1/7+1/23-1/1009):(1/23+1/7-1/1009+1/7x1/23x1/1009)+1:(30x1009-160)

Answer 1

suy ra A=1/23+1/7-1/1009.23.7.1009 phần 1/23+1/7-1/1009+1/7.1/3/1/1009 .23.7.1009+1/30.1009-160

suy ra A=7.1009+23.1009-23.7/7.1009+23.1009-23.7+1               +1/7.1009+23.1009-23.7+1=7/1009+23.1009- 23.7+1/7.1009+23.1009-23.7+1=1 

Answer 2

1009.23.717.231009.231009.71009.23.723.71009.71009.23+−+−+=A Xem nội dung đầy đủ tại: http://123doc.org/document/1622115-de-dap-an-hsg-toan-6-y6-1.htm+ Xem nội dung đầy đủ tại: http://123doc.org/document/1622115-de-dap-an-hsg-toan-6-y6-1.htm11611009).237(1 Xem nội dung đầy đủ tại: http://123doc.org/document/1622115-de-dap-an-hsg-toan-6-y6-1.htm