450:[550-(4.5\(^3\)-2\(^2\).25)]
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\(=100:\left\{250\left[450-\left(4\cdot125-4\cdot25\right)\right]\right\}\\ =100:\left[250\left(450-400\right)\right]\\ =100:\left(250\cdot50\right)=100:12500=12,5\)
=100:{250.[450-(4.125-4.25)]}
=100:{250:[450-400]}
=100:{250:50}
=100:5
=20
\(=100:\left[250:\left(450-300\right)\right]\)
\(=100:\left(250:150\right)\)
\(=100:250\cdot150\)
\(=\dfrac{20\cdot5\cdot50\cdot3}{5\cdot50}\)
\(=60\)
d, \(1000:\left\{250:\left[450-\left(4.5^3-2^2.25\right)\right]\right\}\)
\(=1000:\left\{250:\left[450-\left(4.125-4.25\right)\right]\right\}\)
\(=1000:\left\{250:\left[450-4.\left(125-25\right)\right]\right\}\)
\(=1000:\left[250:\left(450-400\right)\right]\)
\(=1000:\left(250:50\right)=1000:5=200\)
Chúc bạn học tốt!!!
Ta có : \(1000:\left\{250:\left[450-\left(4.5^3-2^2.25\right)\right]\right\}\)
\(=1000:\left\{250:\left[450-\left(4.5^3-4.5^2\right)\right]\right\}\)
\(=1000:\left\{250:\left[450-4.5^2\left(5-1\right)\right]\right\}\)
\(=1000:\left[250:\left(450-400\right)\right]\)
\(=1000:\left(250:50\right)\)
\(=1000:5=200\)
Chúc bạn học tốt ^^
100:{250:[450-(4.53-22.25)}]
=100:{250:[450-(500-100)]}
=100:{250:[450-400]}
=100:{250:50}
=100:5
=20
Là :
= 100 : {300 : [450 - (500-200)]}
= 100 : {300 : [450-300]}
= 100 : {300 : 150}
= 100 : 2
= 50
100:{250:[450-(4.53-22.25)}]
=100:{250:[450-(500-100)]}
=100:{250:[450-400]}
=100:{250:50}
=100:5
=20
100:{250:[450-(4.5^3-2^2.25)]}
=100:{250:[450-(4.125-4.25)]}
=100:{250:[450-(500-100)]}
=100:{250:[450-400]}
=100:{250:50}
=100:5
=20
~Chúc học tốt!~
\(100:\left\{250:\left[450-\left(4.5^3-2^2.25\right)\right]\right\}\)
= \(100:\left\{250:\left[450-\left(2^2.5^3-2^2.5^2\right)\right]\right\}\)
= \(100:\left\{250:\left[450-2^2.5^2\left(5-1\right)\right]\right\}\)
= \(100:\left[250:\left(450-100.4\right)\right]\)
=\(100:\left(250:50\right)\)
= \(100:5\)
= \(20\)
15.{550: [450-(3.5^3-2^3.25)]}
= 15.{550: [ 450-(3.125-8.25)]}
= 15.{550:[ 450-( 375-200)]}
= 15.{550:[450- 175]}
=15.{550: 275}
= 15. 2
= 30
15 . { 550 : [ 450 - ( 3 . 53 - 23 . 25 )]}
= 15 . { 550 : [ 450 - ( 3 . 125 - 8 . 25 )]}
= 15 . { 550 : [ 450 - ( 375 - 200 )]}
= 15 . { 550 : [ 450 - 175 ]}
= 15 . { 550 : 275 }
= 15 . 2
= 30.
#Y/n
450:[550-(4.125-4.26)]
=450:[550-396]
=450:154
=2.9220779
450:[550-(4.125-4.26)]
=450:[550-396]
=450:154
=2.9220779