“微信扫一扫”进入题库练习及模拟考试
比较下列各组中两个值的大小:
参考答案:\( \because 3{\mathrm{log}}_{4}5={\mathrm{log}}_{4}125\)
\( 2{\mathrm{log}}_{2}3={\mathrm{log}}_{2}9={\mathrm{log}}_{4}81\)
且函数 \( y={\mathrm{log}}_{4}x\) 在 \( (0,+\infty )\) 上是增函数
\( \therefore 3{\mathrm{log}}_{4}5>2{\mathrm{log}}_{2}3\)