已知log5(x+2x-2)=0,2log5(x+2)-log5y+1/2=0,求y的值

解方程：log5(2x+1)=log5(x2-2) 已知log5(xˆ2;+2x-2)=0,2log5(x+2)-log5y+1/2=0,求y值 已知log5(x+2x-2)=0,2log5(x+2)-log5y+1/2=0,求y的值 求x的值 log4^x=-2/3 log2^(log5^x)=0log4^x=-2/3 log2^(log5^x)=0 分开的 已知log5 2=a,log5 3=b,求log5 额,求解指数方程log5（2x²-3x+1) -log5（x-1）+log5（125）=6谢啦,log后的5都是底数! log5(x^2+2x-2)=0,2log5(x+2)-log5y+1/2=0求y底数皆为5, log5 2+log5 3+log5 1/6=? 一道高一数学题对数log2,详见补充已知log2[log1/2(log2^x)]=log3[log1/3(log3^y)]=log5[log1/5(log5^z)]=0,试比较x,y,z的大小? 如果log(2)[log(3)(log5 x)]=0,那么X=?一时转不过弯 2log5^10+log5^0.25=? 计算2log5^10+log5^0.25= 2log5 10+log5 0.25=? 1.e^(x+3)=(e^x)+3 求x2.求x最大值log5(x^2)-log5(x+2)=33.简化tan(2cos^-1(x/5)) 已知log2=a,log3=b,用a、b表示log5 72 (急~）1.已知log2=a,log3=b,用a、b表示log5 722.已知x=log2 5,求2^x+4^-x 比较log5(x+2)与log5（2x+5)的大小 y=log5(x*x-4x-12)求它的定义域 xx-4x-12>0 (x-6)(x+2)>0 => x>6 或 x 1.方程(log5 x)²+2log25x-2=0的解集是