Если очень подробно, то ....
[ (1/8)*n^(3/2) ]^(-1/3)= [ (1/8)^(-1/3) ] *[ (n^(3/2) ]^(-1/3) ]=
=[ 8^(1/3) ] * [ n^(3/2*(-1/3) ]=[ (2³)^(1/3) ] * [ n^(-1/2) ]=
=2*(1/√n)
n=4
2*(1/√4)=1
= ( V 45 ) ^2 + 2 * ( V 45 ) * ( V 80 ) + ( V 80 ) ^2 = 45 + 80 + 2 * ( V ( 45 * 80 ) ) = 125 + 2 * ( 3 * 4 V ( 5 * 5 )) = 125 + 24 * 5 = 125 + 120 = 245
(45^10) / (5^8) * (3^19)] = [(3^20)*(5^10)] / (5^8) * (3^19)] =
= {3*5²) = 3*25 = 75
1
4ab(3a+2b)/[(3a-2b)(3a+2b)]=4ab/(3a-2b)
2
(5-6c)²/[(5-6c)(5+6c)=(5-6c)/(5+6c)
Y=x²-2x-3
1)A(2,3), 2²-2.2-3=4-4-3=-3≠3, A ne prinadležit.
2)B(-1,5), (-1)²-2(-1)-3=1+2-3=0,B ne prinadležit.