Question

( 2 √3 - 3/2) do kwadratu - ( 2 √3 + 3/2) do kwadratu

( √3 - 1 ) do kwadratu - (2 - √3) do kwadratu

(pierwiastek z 6 + pierwiastek z 15) do kwadratu

Answer 1

(2√3 - 3/2)^2 - (2√3 + 3/2)^2= (12-6√3+9/4) - (12+6√3+9/4)= 12- 6√3 + 9/4 - 12 -6√3- 9/4= -12√3

 

(√3- 1)^2 - (2-√3)^2=(3- 2√3 +1) - (4 - 4√3 +3)= 3- 2√3 +1 -4 +4√3 - 3= 2√3 - 3

 

(√6 + √15)^2= 6 + 2 √90 + 15= 21 + 2√90= 21+ 6√10