\(100:\left\{250:\left[450-\left(4.5^3-2^5.25\right)\right]\right\}\)

\(=100:\left\{250:\left[450-\left(500-800\right)\right]\right\}\)

\(=100:\left\{250:\left[450+300\right]\right\}\)

\(=100:\left\{250:700\right\}\)

\(=100:\frac{5}{14}\)

\(=280\)

100:{250:[450 - ( 4 . 125 - 4.25 )]}

100: { 250: [  450 - ( 500 - 100 ) ]}

100: {250:[ 450 - 400]

100: { 250 : 50 }

100: 5 = 20

\(=100:\left\{250\left[450-\left(4\cdot125-4\cdot25\right)\right]\right\}\\ =100:\left[250\left(450-400\right)\right]\\ =100:\left(250\cdot50\right)=100:12500=12,5\)

100 : { 250 [ 450 - ( 4.5^3 - 2^2 .25) ]} = 12,5

=100:{250.[450-(4.125-4.25)]}

=100:{250:[450-400]}

=100:{250:50}

=100:5

=20

100:{250:[450-(4.5³-2².25)}]

=100:{250:[450-(500-100)]}

=100:{250:[450-400]}

=100:{250:50}

=100:5

=20

a. 525

b. 

a. -82

b. 15

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!~

\(100:\left\{250:\left[450-\left(4.5^3-2^2.25\right)\right]\right\}\)

= \(100:\left\{250:\left[450-\left(2^2.5^3-2^2.5^2\right)\right]\right\}\)

= \(100:\left\{250:\left[450-2^2.5^2\left(5-1\right)\right]\right\}\)

= \(100:\left[250:\left(450-100.4\right)\right]\)

=\(100:\left(250:50\right)\)

= \(100:5\)

= \(20\)

ai giúp mình với 

các góc nhọn,tù,vuông có bao nhiêu độ

minhf

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 ^^

\(1000:\left\{250:\left[450-\left(4.5^3-2^2.25\right)\right]\right\}\)

\(=1000:\left\{250:\left[450-\left(4.125-4.25\right)\right]\right\}\)

\(=1000:\left\{250:\left[450-4.\left(125-25\right)\right]\right\}\)

\(=1000:\left[250:\left(450-400\right)\right]\)

\(=1000:\left(250:50\right)\)

\(1000:5=200\)