Question

Se A = 3 – √3; e B = -1 + √3, o valor de A/B é igual a:

a) √3
b) -√3
c)√3/2​

Answer 1

Resposta:

A/B=(3 – √3)/( -1 + √3)

A/B=(3 – √3)( √3+ 1) /( √3-1)( √3+ 1)

A/B=(3 – √3)( √3+ 1) /( √3²-1²)

A/B=(3√3 – √3² +3 – √3)( √3+ 1) /( 3-1)

A/B=(3√3 – 3 +3 – √3) /( 3-1)

A/B=2√3 /2

A/B = √3

letra A