Toán 2√15 – 2√10 + √6 – 3 / 2√5 -2√10 – √3 + √6 31/08/2021 By Reese 2√15 – 2√10 + √6 – 3 / 2√5 -2√10 – √3 + √6
$2\sqrt{15}-2\sqrt{10}+\sqrt{6}-\dfrac{3}{2}.\sqrt{5}-2\sqrt{10}-\sqrt{3}+\sqrt{6}\\=2\sqrt{15}-2\sqrt{10}+\sqrt{6}-\dfrac{3\sqrt{5}}{2}-2\sqrt{10}-\sqrt{3}+\sqrt{6}\\=2\sqrt{15}-4\sqrt{10}+2\sqrt{6}-\dfrac{3\sqrt{5}}{2}-\sqrt{3}$ Trả lời
$2\sqrt{15}-2\sqrt{10}+\sqrt{6}-\dfrac{3}{2}.\sqrt{5}-2\sqrt{10}-\sqrt{3}+\sqrt{6}\\=2\sqrt{15}-2\sqrt{10}+\sqrt{6}-\dfrac{3\sqrt{5}}{2}-2\sqrt{10}-\sqrt{3}+\sqrt{6}\\=2\sqrt{15}-4\sqrt{10}+2\sqrt{6}-\dfrac{3\sqrt{5}}{2}-\sqrt{3}$