a (3+\sqrt{5})b (2-\sqrt{5})(5+\sqrt{3})c (6-\sqrt{2})(4-\sqrt{7}) 相关知识点: 试题来源: 解析 3+√5;10+2√3-5√5-√(15);24-6√7-4√2+√(14) a (3+√5)=3+√5 b (2-√5)(5+√3)=10+2√3-5√5-√(15) c (6-√2)(4-√7)=24-6√7-4√2+√(...
Simplify the logarithms below without using a calculator. log 1 + log_2 32 Expand the following logarithmic expression: \log \left (\frac{8x^2y}{z^3} \right ) Use the laws of logarithms to expand and simplify the expressions. (a) ln (e^x /1 + e^x). (b) ln (x (x + 1) ...