100-93*29/36=
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A=[(38+17)+125]+29
A=175+29
A=204
B=312.3
B=936
C=1+1+1+1+1
C=5
D=(125:5).(36:9)
D=25.4
D=100
ok
\(\frac{9}{100}=>\frac{13}{100}=>\frac{14}{100}=>\frac{15}{100}=>\frac{16}{100}=>\frac{17}{100}=>\frac{20}{100}\)
\(=>\frac{20}{100}=>\frac{24}{100}=>\frac{25}{100}=>\frac{29}{100}=>\frac{31}{100}=>\frac{36}{100}=>\frac{37}{100}=>\frac{67}{100}\)
\(\frac{93}{100}=>\frac{100}{99}=>\frac{100}{94}=>\frac{100}{92}=>\frac{100}{91}=>\frac{100}{89}\)
9/100 13/100 14/100 15/100 16/100 17/100 20/100 24/100 25/100 29/100 31/100 36/100 37/100 67/100 93/100 100/99 100/94 100/92 100/91 100/89.
Rút gọn.
\(B=\dfrac{x^{39}x^{36}x^{33}...x^31}{x^{40}x^{38}x^{36}...x^21}=\dfrac{x^{\left(39+36+33+...+3\right)}}{x^{\left(40+38+36+...+2\right)}}\)
ta có: \(39+36+33+...+3=\dfrac{\left(39+3\right)\left(\dfrac{39-3}{3}+1\right)}{2}=273\)
\(40+38+36+....+2=\dfrac{\left(40+2\right)\left(\dfrac{40-2}{2}+1\right)}{2}=420\)
=> \(B=\dfrac{x^{273}}{x^{420}}=\dfrac{1}{x^{147}}\)
Tương tự như B => \(A=\dfrac{x^{4560}}{x^{496}}=x^{4064}\)
Ta có:
\(B=\dfrac{x^{\left(39+36+33+....+3\right)}}{x^{\left(40+38+36+....+2\right)}}\)
\(39+36+33+....+3=\dfrac{\left(39+3\right)\left(\dfrac{39-3}{3}+1\right)}{2}=273\)
\(40+38+36+....+2=\dfrac{\left(40+2\right)\left(\dfrac{40-2}{2}+1\right)}{2}=420\)
\(\Rightarrow B=\dfrac{x^{273}}{x^{420}}=\dfrac{1}{x^{147}}\)
tương tự => \(A=\dfrac{x^{4560}}{x^{496}}=x^{4064}\)
91 x 157 - 29 x 91 - 91 x 28
=9100
127 x 63 + 19 x 127 - 82 x 26
=8282
2 x 9 x 41 + 36 + 3 x 57 x 6
=1800
29 x 17 + 31 x 29 + 48 x 93 - 48 x 22
=4800
1125 - 25 x 30 + 0,06 : 0,2
=375.3
Bn k cho mk nha!
91 x 157 - 29 x 91 - 91 x 28
= 19 (157 - 29 - 28)
=19 * 100
=1900
127 x 63 + 19 x 127 - 82 x 26
= 127 (63 + 19) - 82 * 26
= 127 * 82 - 82 * 26
= 82 (127 - 26)
= 82 * 101
= 8282
2 x 9 x 41 + 36 + 3 x 57 x 6
= 738 + 36 + 1026
= 1800
29 x 17 + 31 x 29 + 48 x 93 - 48 x 22
= 29 (17 + 31) + 48 (93 - 22)
= 29 * 48 + 48 * 71
= 48 (29 + 71)
= 48 * 100
= 4800
1125 - 25 x 30 + 0,06 : 0,2
= 1125 - 750 + 0,3
= 375 + 0,3
= 375,3
100-93*29/36= - 699/2
Đáp số: -699/2
100 - 93 x 29/36
= `100 - 899/12
=301/12
k mk mk k lại