Question

Срочно!
1) (1/4)³
2) -(-2/3)³
3) 3-x² при x=-1

Answer 1

1) (1/4)³ =1/4*1/4*1/4=1/64

2) -(-2/3)³ =-(-2/3)*(-2/3)*(-2/3)=8/27

3) 3-x²=3-(-1)²=3-1=2