Question

calculați x*y*z, știind că. a) x=4pe 5si yz=5pe 6,b)y=2pe 3si xz=9pe 4​

Answer 1

Răspuns:

Explicație pas cu pas:

a)   x = 4 / 5   si  yz = 5 / 6

x × y × z = ( 4 / 5 ) × ( 5 / 6 ) = ( 5 / 5 ) × ( 4 / 6 ) = 1 × ( 2 / 3 ) = 2 / 3

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b)   y = 2 / 3   si  xz = 9 / 4

x × y × z = y × ( x × z ) = ( 2/3) × ( 9/4) = ( 9/3)×(2/4) = 3 × ( 1/2) = 3 / 2

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