Question

Efectuati calculele
(9/√3-2√3)* √3/4-√169/16

Answer 1

9/√3 × √3/4 - 2√3 × √3/4 - √(13²/4² = 9 × 3/4 - 2 × 3/4 - 13/4 = 27/4 - 6/4 - 13/4 = 8/4 = 2

Answer 2

9/√3·√3/4 - 2√3·√3/4 - √169/√16=
9/4 - 6/4 - 13/4=
(9-6-13)/4=
-10/4=
-5/2