Question

Помогите срочно даю 20 баллов!!!!

Answer 1

$1)\ \ (-1)^3=2=(-1)\cdot (-1)=1\\\\(-1)^3=(-1)\cdot (-1)\cdot (-1)=-1\\\\(-0,2)^4=(-1)^4\cdot 0,2^4=+0,0016\\\\\Big(-\dfrac{1}{3}\Big)^3=\Big(-\dfrac{1}{3}\Big)\Big(-\dfrac{1}{3}\Big)\Big(-\dfrac{1}{3}\Big)=-\dfrac{1}{27}\\\\\\(-10)^2=(-10)(-10)=100$

$2)\ \ \Big(-\dfrac{5}{3}\Big)\cdot \Big(-\dfrac{5}{3}\Big)\cdot \Big(-\dfrac{5}{3}\Big)=\Big(-\dfrac{5}{3}\Big)^3=-\dfrac{125}{27}\\\\\\\underbrace {5\cdot 5}_{2}\cdot \underbrace {a\cdot a\cdot a\cdot a}_{4}=5^2\cdot a^4=25a^4$