tinh gia tri bieu thuc
3/4 x 8,4 +2,8 x 1va1/2
1va1/2 la hon so nha
x - 5/6 : 1va1/6 = 0,125
1va1/6 la hon so
\(x-\frac{5}{6}:1\frac{1}{6}=0,125\)
\(x-\frac{5}{6}:\frac{7}{6}=0,125\)
\(x-\frac{5}{7}=0,125\)
\(x=0,125+\frac{5}{7}\)
\(x=\frac{47}{56}\)
1va1/4+2va2/5ta=...kg( va la hon so may mk ko viet hon so duoc)
giup nha
(x-1va1/2)^2019=1/25(x-1va1/2)^2017
cau 1:tinh gia tri bieu thuc
3/4 +1/1/4 *2/2/3-(-1/2)^2:6/5
cho ma co 2 dau/la hon so,con 1 dau la phan so,con ^2 la mu 2
cau 2:tim x biet
( x-1)^5= -32
cho ^5 co nghia la mu 5
a)3/4+1/1/4*2/2/3-(-1/2)^2:6/5
=3/4+5/4*8/3-1/4:6/5
=3/4+10/3-5/24=18/24+80/24-5/24=93/24=31/8
b)(x-1)^5=32=2^5
=>x-1=2
x=2+1
x=3
Tim so tu nhien x biet1va1/5 nhan 1va1/6 nhan 1va1/7....nhan 1va1/2014
X=6/5x7/6x8/7x...x2015/2014
X=6x7x8x...x2015/5x6x7x...x2014
X=2015/5=403
K nhé các bạn ơi.
tinh gia tri bieu thuc: 5,6 x 2 + 2,8 x 8 + 11,2 x 2 - 48,5 =
bằng 7,5 nha
tick mình nhé bạn đỗ thị thuỳ linh đáng iu
bằng 7,5 nha bạn đỗ thị thùy linh đáng iu !!!tick nha
giup minh tra loi cau nay nha
x/2+x/3+x/4-0.6=-1va1/2
tim so tu nhien x biet 1va1/5 x 1va1/6.......x1va1/2014
bai nay lam sao hon so nha tinh gia tri bieu thiuc 3/4 + 2 1/5 * 3 3/4 cau hai 11/4 - 2 1/5 chia 3 3/4 giup mk nha mk ko bit lam nan ni nhanh k tik cho