Ответы и объяснения

  • Участник Знаний
2014-03-20T15:36:39+04:00
( 24AB^2) / ( 18A^4B^2) = ( 3AB * ( 8B )) / ( 3AB * ( 6A^3B ) = 8B / 6A^2B =
= 4/3 A^2 = 1 1/3 A^2 
==============================================================
( 5X * ( 2X - 3Y)) / ( 4Y * ( 3Y - 2X)) = ( - 5X ) /  4Y = ( - 1.25X / Y )
==============================================================
7/X + 1/4X = ( 28 + 1) / 4X = 29 / 4X = 7.25 / X 
==============================================================
1 / ( X - 2) - 1 / ( X + 2 ) = ( ( X + 2 ) - ( X - 2 )) / ( X^2 - 4) = 4 / ( X^2 - 4 )
==============================================================