(5*根号(1/2)-6*根号(3/2))((1/4)*根号(8)-根号(2/3))
问题描述:
(5*根号(1/2)-6*根号(3/2))((1/4)*根号(8)-根号(2/3))
答
(5√(1/2) - 6√(3/2)) ( (1/4)√8 - √(2/3)) = (5/2 √2 - 3/2 √6) (1/2 √2 - 1/3 √6) = 5/4 * √4 -5/6 √12 - 3/4√12 + 1/2 √36 = 5/4 * 2 - 5/3 √3 - 3/2 √3 + 1/2 * 6 = 5/2 - 19/6 √3 + 3 = 11/2 - 1...