Question

Va rog ajutați-mă, urgent

Answer 1

( x; y ) d.p ( 3; 4 )

x / 3 = y / 4 = k ==> x = 3 k; y = 4 k

( 3 x + 2 y ) / ( 2 x + 3 y ) = 17 / 18

= ( 3 · 3 k + 2 · 4 k ) / ( 2 · 3 k + 3 · 4 k )

= ( 9 k + 8 k ) / ( 6 k + 12 k ) =

= 17 k / 18 k =

= 17 / 18