已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/18 14:46:24
已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值
x){}KsӍ5*t*5!Lm ̩:66F {la~ UC{:@@܉l\KEIeXqE&X .  eR tLC[J #[Jg3@F CbQoRikd_\<{g

已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值
已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值

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