Các câu hỏi tương tự
tisnh A =(20,07+2008.20,09).(20,11.0,01-20,11)
tính A=(20,07+2008.20,09).(2011.0,01-20,11)
Tính A= (20,07+2008.20,09) . (2011.0,01.20,11)
A=(20,07+2008x20,09)x(2011x0,01-20,11)
tính A=(20,07+2008x20,09)x(2011x0,01-20,11)
tính a ( 20,07+2008x20,09)x(20,11x0,01-20,11)
tính A = (20,07+2008.0,09).(2011.0,01-20,11)
tinh tong sau bang 2 cach
a. \(A=1+\left(-2\right)+3+\left(-4\right)+...+\left(-98\right)+99\)
b.\(B=1+\left(-4\right)+7+\left(-10\right)+...+319+\left(-322\right)+325\)
Tinh hop ly cac bieu thuc sau
a)\(\left(1-\frac{1}{7}\right)\left(1-\frac{2}{7}\right)\left(1-\frac{3}{7}\right)...\left(1-\frac{2014}{7}\right)\)
b) \(\left(\frac{1}{2}+1\right)\left(\frac{1}{3}+1\right)\left(\frac{1}{4}+1\right)...\left(\frac{1}{99}+1\right)\)