Question

对数函数性质本人教笨,请多多指教

Answer 1

基本性质：

1、a^(log(a)(b))=b

2、log(a)(a^b)=b

3、log(a)(MN)=log(a)(M)+log(a)(N);

4、log(a)(M÷N)=log(a)(M)-log(a)(N);

5、log(a)(M^n)=nlog(a)(M)

6、log(a^n)M=1/nlog(a)(M)

其他性质：

1.换底公式

log(a)(N)=log(b)(N)÷log(b)(a)

2.log(a)(b)=1/log(b)(a)

3.对数函数的图象都过(1,0)点.

4.对于y=log(a)(n)函数,

①,当0