Tính D :
\(D={{(3*4*216)^2} \over {11*(2^{13})*(4^{11})-(16^9)}}\)
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\(D={{{3*4*216}^2} \over {11*2^{13}*4^{11}-11^9}}\) .Tính D
\(Tính : D={{{3*4*216}^2} \over {11*2^{13}*4^{11}-11^9}}\)
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tính :
D=[(3*4*216)^2]/[11*(2^13)*(4^11)-(16^9)]
tính hợp lí
a,(10^2 +11^2 + 12^2):(13^2+14^2)
b, 1*2*3*.....*9-1*2*3*...*8-1*2*3*...*7*8^2
c, (3*4*2^16)^2 / 11*2^13*4^11-16^9
d,1152-(374+1152)+(-65+374)
b,1×2×3×...×9-1×2×3×...×8-1×2×3×...×7×8^2
=(1×2×3×...×8)×(9-1-8)
=(1×2×3×...×8)×0
=0
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thực hiện phép tính sau 1 cách hợp lí
a.(10^2+11^2+12^2):(13^2+14^2)
b.1*2*3*...*9-1*2*...*8-1*2*3*...*7*8^2
c.(3*4*2^16)^2/11*2^13*4^11-16^9
d.13-12+11+10-9+8-7-6+5-4+3+2-1
đang cần gấp
nhanh mình tick cho
Bài 1: Tính
a. 5 × -7/10
b. 4/5 × -3/22
c. 4/9 + 4/3 × 16/4
d. 11/22 - 3/9 × 14/21
Bài 2: Tính hợp lý
A = 6/13 × 5/7 + 6/13 × 2/7 + 17/13
B = 11/15 × 4/11 + 11/15 × 5/11 + 11/15 × 2/11
C = ( 19/64 - 33/22 + 24/51 ) × ( 1/5 - 1/15 - 2/15 )
D = 8/13 × 7/12 + 8/13 × 5/12 - 1/12
BÀI 1
a, \(5\times\frac{-7}{10}=\frac{-35}{10}=\frac{-7}{2}\)
b, \(\frac{4}{5}\times\frac{-7}{10}=\frac{-28}{50}=\frac{-14}{25}\)
c, \(\frac{4}{9}+\frac{4}{3}\times\frac{16}{4}=\frac{4}{9}+\frac{16}{3}=\frac{52}{9}\)
d, \(\frac{11}{22}-\frac{3}{9}\times\frac{14}{21}=\frac{11}{22}-\frac{2}{9}=\frac{55}{198}=\frac{5}{18}\)
BÀI 2
\(A=\frac{6}{13}\times\frac{5}{7}+\frac{6}{13}\times\frac{2}{7}+\frac{17}{13}\)
\(A=\frac{30}{91}+\frac{12}{91}+\frac{17}{13}\)
\(A=\frac{30}{91}+\frac{12}{91}+\frac{119}{91}\)
\(A=\frac{161}{91}=\frac{23}{13}\)
\(B=\frac{11}{15}\times\frac{4}{11}+\frac{11}{15}\times\frac{5}{11}+\frac{11}{15}\times\frac{2}{11}\)
\(B=\frac{4}{15}+\frac{1}{3}+\frac{2}{15}\)
\(B=\frac{11}{15}\)
\(C=\left(\frac{19}{64}-\frac{33}{22}+\frac{24}{51}\right)\times\left(\frac{1}{5}-\frac{1}{15}-\frac{2}{15}\right)\)
\(C=\frac{-797}{1088}\times0\)
\(C=0\)
\(D=\frac{8}{13}\times\frac{7}{12}+\frac{8}{13}\times\frac{5}{12}-\frac{1}{12}\)
\(D=\frac{14}{39}+\frac{10}{39}-\frac{1}{12}\)
\(D=\frac{83}{156}\)
bạn biết câu náy không (24 + 11) . {546 - [14 . (64 - 2^{3}3) : 2]} =
rút gọn phân số
a, 9^2*25^2/15^4*2
b, -4*75^2+4*72^2/-18^2
c, 4^6*9^5+6^9*120/8^4*3^12-3^11
d, (3*4*2^16)^2:(11*2^13*4^11-16^9
Bài 1 Tính nhanh
a) -3/7 + 5/13 + 3/7
b) -5/21+-2/21+8/24
c) -5/11+(-6/11+2)
d) (-1/32+1/2)+15/32
e)5/17+ -6/13 + 3/4 + 7/-13+12/17
f) 7/23+-18/18+-4/9+16/23+-5/8
g)1/3+-3/4+3/5+-1/36+1/15+-2/9
h)-1/2+1/3+-1/4+-2/8+4/18+4/9
Ghi đầy đủ nha
a)\(-\dfrac{3}{7}+\dfrac{5}{13}+\dfrac{3}{7}\)
=\(\left(-\dfrac{3}{7}+\dfrac{3}{7}\right)+\dfrac{5}{13}\)
=\(0+\dfrac{5}{13}\)
=\(\dfrac{5}{13}\)
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Xem thêm câu trả lời
a -5/9 + ( 17/20 - 4/9 ) b (7/15 - 11/20 ). -25/3 c ( 5/6 - 1/2 ).(8/15 - 3/15) d 11/12 + 7/16 : -3/4 - 13/12 giup mimh voi minh tich cho
a: =-1+17/20=-3/20
b: =(28/60-33/60)*(-25/3)
=(-1/12)*(-25/3)=1/12*25/3=25/36
c: \(=\dfrac{1}{3}\cdot\dfrac{1}{3}=\dfrac{1}{9}\)
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