Tính
----- Nội dung ảnh -----
**Bài 1. Tính**
a) \( \left( \sqrt{\frac{2}{3}} + \sqrt{\frac{50}{3}} - \sqrt{24} \right) \sqrt{6} \)
b) \( \sqrt{3} + \sqrt{5} \sqrt{2} \)
c) \( \left( \sqrt{\frac{3}{4}} - \sqrt{3} + 5 \right) \sqrt{\frac{4}{3}} \sqrt{12} \)
**Bài 2. Rút gọn**
a) \( A = \frac{\sqrt{10} - \sqrt{15}}{\sqrt{8} - \sqrt{12}} \)
b) \( B = \frac{\sqrt{6} - \sqrt{15}}{\sqrt{35} - \sqrt{14}} \)
c) \( C = \frac{5 + \sqrt{5}}{\sqrt{10} + \sqrt{2}} \)
d) \( D = \frac{\sqrt{15} - \sqrt{5}}{\sqrt{3} - 1} + \frac{5 - 2 \sqrt{5}}{2 \sqrt{5} - 4} \)
e) \( C = \sqrt{(9 + 2\sqrt{14})(9 - 2\sqrt{14})} \)
f) \( D = \sqrt{117 \cdot 5^2 - 26 \cdot 5^2 - 1440} \)
Trang 2
**Bài 1. Tính**
a) \( \left( \sqrt{\frac{2}{3}} + \sqrt{\frac{50}{3}} - \sqrt{24} \right) \sqrt{6} \)
b) \( \sqrt{3} + \sqrt{5} \sqrt{2} \)
c) \( \left( \sqrt{\frac{3}{4}} - \sqrt{3} + 5 \right) \sqrt{\frac{4}{3}} \sqrt{12} \)
**Bài 2. Rút gọn**
a) \( A = \frac{\sqrt{10} - \sqrt{15}}{\sqrt{8} - \sqrt{12}} \)
b) \( B = \frac{\sqrt{6} - \sqrt{15}}{\sqrt{35} - \sqrt{14}} \)
c) \( C = \frac{5 + \sqrt{5}}{\sqrt{10} + \sqrt{2}} \)
d) \( D = \frac{\sqrt{15} - \sqrt{5}}{\sqrt{3} - 1} + \frac{5 - 2 \sqrt{5}}{2 \sqrt{5} - 4} \)
e) \( C = \sqrt{(9 + 2\sqrt{14})(9 - 2\sqrt{14})} \)
f) \( D = \sqrt{117 \cdot 5^2 - 26 \cdot 5^2 - 1440} \)
Trang 2