Вычислите:
а) $15^2; 20^3; 9^3$;
б) $(\frac{4}{5})^2; (\frac{2}{3})^3; (4\frac{1}{2})^2$;
в) $1,5^2; 2,1^2; 0,5^3$;
г) $(-3)^4; (-4)^3; (-2)^5$;
д) $(-\frac{1}{2})^3; (-\frac{3}{4})^2; (-1\frac{1}{3})^2$;
е) $(-1,5)^2; (-0,2)^3; (-0,1)^5$.
$15^2 = 15 * 15 = 225$;
$20^3 = 20 * 20 * 20 = 8000$;
$9^3 = 9 * 9 * 9 = 729$.
$(\frac{4}{5})^2 = \frac{4}{5} * \frac{4}{5} = \frac{16}{25}$;
$(\frac{2}{3})^3 = \frac{2}{3} * \frac{2}{3} * \frac{2}{3} = \frac{8}{27}$;
$(4\frac{1}{2})^2 = (\frac{9}{2})^2 = \frac{9}{2} * \frac{9}{2} = \frac{81}{4} = 20\frac{1}{4}$.
$1,5^2 = 1,5 * 1,5 = 2,25$;
$2,1^2 = 2,1 * 2,1 = 4,41$;
$0,5^3 = 0,5 * 0,5 * 0,5 = 0,125$.
$(-3)^4 = (-3) * (-3) * (-3) * (-3) = 81$;
$(-4)^3 = (-4) * (-4) * (-4) = -64$;
$(-2)^5 = (-2) * (-2) * (-2) * (-2) * (-2) = -32$.
$(-\frac{1}{2})^3 = (-\frac{1}{2}) * (-\frac{1}{2}) * (-\frac{1}{2}) = -\frac{1}{8}$;
$(-\frac{3}{4})^2 = (-\frac{3}{4}) * (-\frac{3}{4}) = \frac{9}{16}$;
$(-1\frac{1}{3})^2 = (-\frac{4}{3})^2 = (-\frac{4}{3}) * (-\frac{4}{3}) = \frac{16}{9} = 1\frac{7}{9}$.
$(-1,5)^2 = (-1,5) * (-1,5) = 2,25$;
$(-0,2)^3 = (-0,2) * (-0,2) * (-0,2) = -0,008$;
$(-0,1)^5 = (-0,1) * (-0,1) * (-0,1) * (-0,1) * (-0,1) = -0,00001$.
Пожауйста, оцените решение
