a =1995 nhân 1993
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
A = 1995 x 1993 - 18 / 1975 + 1993 x 1994
= (1994 + 1) x 1993 - 18 / 1975 + 1993 x 1994
= 1994 x 1993 + 1993 - 18 / 1975 + 1993 x 1994
= 1994 x 1993 + 1975 / 1975 + 1993 x 1994
= 1
\(A=\dfrac{1995\times1994-1}{1993\times1995+1994}\)
\(A=\dfrac{1995\times\left(1993+1\right)-1}{1993\times1995+1994}\)
\(A=\dfrac{1995\times1993+1995-1}{1995\times1993+1994}\)
\(A=\dfrac{1995\times1993+1994}{1995\times1993+1994}\)
\(A=1\)
Hãy đặt lại biểu thức:
\(\dfrac{1995}{1997}x\dfrac{1997}{54}x\dfrac{27}{45}x\dfrac{90}{1993}x\dfrac{1993}{1995}\)
= \(\dfrac{1}{1}x\dfrac{1}{2}x\dfrac{1}{1}x\dfrac{2}{1}x\dfrac{1}{1}=\dfrac{2}{2}=1\) (Thực hiện gạch)
(1995x1996-1997)/(1995x1994-1993)
=(1995x1996)/(1995x1994-1993+1997)
=(1995x1996)/(1995x1994+4)
=(1995x(1995+1)/(1995x1994+4)
=(1995x1995+1995)/(1995x1994+4)
=(1995x1995+1995-4)/(1995x1994)
=(1995x1995+1991)/(1995x1994)
=...Tự giải tiếp nhé, phần sau giải thích hơi dài.
K mình nhé, cảm ơn các bạn.
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%luôn đó.
a = 1995 x 1993
a = ( 2000 - 5 ) x ( 1990 + 3 )
a = 2000 x ( 1990 + 3 ) - 5 x ( 1990 + 3 )
a = 2000 x 1990 + 2000 x 3 - 5 x 1990 - 5 x 3
a = 3 980 000 + 6000 - 9950 - 15
a = 3 986 000 - 9950 - 15
a = 3 976 050 - 15
a = 3 976 035