作业帮=[1/(log2 3)+lg2 3]²-[1/(log2 3)]²-(log2 3)²=2*(1/log2 3)*log2 3,怎么转的啊
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/27 09:40:35
![=[1/(log2 3)+lg2 3]²-[1/(log2 3)]²-(log2 3)²=2*(1/log2 3)*log2 3,怎么转的啊](/uploads/image/z/11638481-41-1.jpg?t=%3D%5B1%2F%28log2+3%29%2Blg2+3%5D%26%23178%3B-%5B1%2F%28log2+3%29%5D%26%23178%3B-%28log2+3%29%26%23178%3B%3D2%2A%281%2Flog2+3%29%2Alog2+3%2C%E6%80%8E%E4%B9%88%E8%BD%AC%E7%9A%84%E5%95%8A)
=[1/(log2 3)+lg2 3]²-[1/(log2 3)]²-(log2 3)²=2*(1/log2 3)*log2 3,怎么转的啊
=[1/(log2 3)+lg2 3]²-[1/(log2 3)]²-(log2 3)²=2*(1/log2 3)*log2 3,怎么转的啊
=[1/(log2 3)+lg2 3]²-[1/(log2 3)]²-(log2 3)²=2*(1/log2 3)*log2 3,怎么转的啊
[1/(log2 3)+lg2 3]²=[1/(log2 3)]²+(log2 3)²+2*1/(log2 3)*lg2 3=[1/(log2 3)]²+(log2 3)²+2
又因为(1/log2 3)*log2 3=1
那么左边就有[1/(log2 3)+lg2 3]²-[1/(log2 3)]²-(log2 3)²=[1/(log2 3)]²+(log2 3)²+2-[1/(log2 3)]²-(log2 3)²=2
右边有2*(1/log2 3)*log2 3=2*1=2
即：左边等于右边
LOG2(3)*LG2=?急求!
=[1/(log2 3)+lg2 3]²-[1/(log2 3)]²-(log2 3)²=2*(1/log2 3)*log2 3,怎么转的啊
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