已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值
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log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值弯闹log3(x-2y)春亮(x+2y)=log3(3)+log3x+log3ylog3x^2-4y^2=log3(3xy)x^2-4y^2=3xy(x-4y)(x+y)=0x1=4y x2=-y(拾去)log2x-log2y=log2(x/埋森罩y)=log2(x/4x)=2...
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