Question

помогите вычислить. Пожалуйста

Answer 1

Объяснение:

$3^{3} =3*3*3=27;\\-3^{3} -27;\\3^{4} = 3*3*3*3 =81;\\(-3) ^{4} =-3*(-3)*(-3)*(-3) =81;\\-3^{4} =-81;\\1^{8} = 1;\\(-1)^{8} = 1;\\(0,3)^{2} = 0,3*0,3=0,09;\\(0,3)^{3}= 0,3*0,3*0,3=0,027;\\\\(-\frac{2}{5} )^{3} = -\frac{2}{5} *(-\frac{2}{5}) *(-\frac{2}{5}) =- \frac{8}{125} ;$

$(1\frac{1}{4} )^{2} =(\frac{5}{4} )^{2} =\frac{5}{4} *\frac{5}{4} = \frac{25}{16} =1 \frac{9}{16} ;\\\\20^{4} *( \frac{1}{10} )^{4} =( 20*\frac{1}{10} )^{4} =2^{4} =16;\\\\\frac{10^{8} }{2^{6}*5^{6} } = \frac{10^{8} }{10^{6} } = 10^{2} =100;\\\\\frac{14^{5} }{7^{5} } = (\frac{14}{7} )^{5} =2^{5} =32.$

Answer 2

Ответ:

3³ = 3·3·3 = 27

-3³ = -3·3·3 = -27

3⁴ = 3·3·3·3 = 81

(-3)⁴ = (-3)·(-3)·(-3)·(-3) = 81

-3⁴ = -3·3·3·3 = -81

1⁸ = 1·1·1·1·1·1·1·1 = 1

(-1)⁸ = (-1)·(-1)·(-1)·(-1)·(-1)·(-1)·(-1)·(-1) = 1

(0,3)² = 0,3·0,3 = 0,09

(0,3)³ = 0,3·0,3·0,3 = 0,027

$\tt \displaystyle \left (-\frac{2}{5} \right )^2 = \left (-\frac{2}{5} \right ) \cdot \left (-\frac{2}{5} \right ) = \frac{4}{25}$

$\tt \displaystyle \left (1\frac{1}{4} \right )^2 = \left (\frac{5}{4} \right )^2 =\left (\frac{5}{4} \right ) \cdot \left (\frac{5}{4} \right ) = \frac{25}{16}$

$\tt \displaystyle 20^4 \cdot \left (\frac{1}{10} \right )^4 = \left (\frac{20}{10} \right )^4 =2^4 =2 \cdot 2 \cdot 2 \cdot 2 = 16$

$\tt \displaystyle \dfrac{10^8}{2^6 \cdot 5^6} = \dfrac{10^6 \cdot 10^2}{(2 \cdot 5)^6} =\dfrac{10^6 \cdot 10^2}{10^6} =10^2=10 \cdot 10 =100$

$\tt \displaystyle \dfrac{14^5}{7^5} = \left (\dfrac{14}{7} \right )^5= 2^5 = 2 \cdot 2 \cdot 2 \cdot 2 \cdot 2 = 32$