阿Q吧 > 6乘2的n次方等于240，请问n等于几？

6乘2的n次方等于240，请问n等于几？

请问这题的解题思路是什么，谢谢
2025-03-16 06:49:03
推荐回答（4个）
回答1：

2的n次方等于40

取40的2对数

回答2：

2^n=5
n=log2(5)
log以2为底5为真数的对数值，n≈2.322

回答3：

供参考，请笑纳。

回答4：

6×2^n=240
2^n=240÷6
2^n=40
n=log2（40） 2为底40的对数
n≈5.32

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