log3^18-log3^2的多少答案是2,求完整过程
问题描述:
log3^18-log3^2的多少
答案是2,求完整过程
答
log3 18-log3 2 =log3 (9*2)-log3 2 =log3 9 + log3 2 -log3 2 =log3 9 =2
log3^18-log3^2的多少
答案是2,求完整过程
log3 18-log3 2 =log3 (9*2)-log3 2 =log3 9 + log3 2 -log3 2 =log3 9 =2