X+2y=4則log2x+log2y最大值
log2X+log2y=1,则2x+y的最小值?log2X+log2y=1,则2x+y的最小值?log2X+log2y=1,则2x+y的最小值?log2(x)+log2(y)=1得:log2(xy)=1即:xy=22x+y≥2√(2xy)即
已知正实数x,y满足1/x+2/y=4,则log2x+log2y的最小值是已知正实数x,y满足1/x+2/y=4,则log2x+log2y的最小值是已知正实数x,y满足1/x+2/y=4,则log2x+log2y的最小值是4=(1/x)+(
已知正数x,y满足x+y=4,则log2x+log2y最大值为已知正数x,y满足x+y=4,则log2x+log2y最大值为已知正数x,y满足x+y=4,则log2x+log2y最大值为√xy≤(x+y)/2=2xy≤4log2x+log2
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)+log
已知正实数x,y满足1/x+2/4=4,则log2X+log2y的最小值已知正实数x,y满足1/x+2/4=4,则log2X+log2y的最小值已知正实数x,y满足1/x+2/4=4,则log2X+log2y的最小值应该是1/x+2/y=4
log2x+log2y=3,则2x+y的最小值是?.log2x+log2y=3,则2x+y的最小值是?.log2x+log2y=3,则2x+y的最小值是?.log2x+log2y=3,的log2(xy)=3,得xy=2^3=82x+y>=2
log2x+log2y=0,且x^4+y^4=194,求log2(x+y)的值log2x+log2y=0,且x^4+y^4=194,求log2(x+y)的值log2x+log2y=0,且x^4+y^4=194,求log2(x+y)的值log
log2x+log2y=0,且x^4+y^4=194,求log2(x+y)的值log2x+log2y=0,且x^4+y^4=194,求log2(x+y)的值log2x+log2y=0,且x^4+y^4=194,求log2(x+y)的值由题意
若(x,y)是直线x+2y-4=0在第一象限的动点坐标,则log2X+log2Y的最大值是若(x,y)是直线x+2y-4=0在第一象限的动点坐标,则log2X+log2Y的最大值是若(x,y)是直线x+2y-4=0在第一象限的动点坐标,则l
设x>0,y>0且log2x+log2y=2,则1/x+1/y的最小值设x>0,y>0且log2x+log2y=2,则1/x+1/y的最小值设x>0,y>0且log2x+log2y=2,则1/x+1/y的最小值(1)㏒2(x)+㏒2(y)=
LOG2(X+Y)=LOG2X+LOG2Y求X+Y的范围其中2都是底数其余的为真数LOG2(X+Y)=LOG2X+LOG2Y求X+Y的范围其中2都是底数其余的为真数LOG2(X+Y)=LOG2X+LOG2Y求X+Y的范围其中2都是底数其余的
4月3日平均值不等式及其应用3(2)设x,y∈R,且log2x+log2y=1,求S=x2+y2-2(x+y)的最小值4月3日平均值不等式及其应用3(2)设x,y∈R,且log2x+log2y=1,求S=x2+y2-2(x+y)的最小值4月
已知x>1y>1且log2x*log2y=1,则xy最小值以2为底已知x>1y>1且log2x*log2y=1,则xy最小值以2为底已知x>1y>1且log2x*log2y=1,则xy最小值以2为底
已知x>1,y>1,且xy=16,则log2x.log2y(以2为底)已知x>1,y>1,且xy=16,则log2x.log2y(以2为底)已知x>1,y>1,且xy=16,则log2x.log2y(以2为底)log2x乘log2y=log
已知log2(x+y)=log2x+log2y,则x+y的取值范围是?已知log2(x+y)=log2x+log2y,则x+y的取值范围是?已知log2(x+y)=log2x+log2y,则x+y的取值范围是?∵log2(x+y)=log2
已知log2(x+y)=log2x+log2y,则x+y的取值范围区间形式已知log2(x+y)=log2x+log2y,则x+y的取值范围区间形式已知log2(x+y)=log2x+log2y,则x+y的取值范围区间形式由于:log2(x
设正数xy满足log2(x+y+3)=log2x+log2y,求xy取值范围设正数xy满足log2(x+y+3)=log2x+log2y,求xy取值范围设正数xy满足log2(x+y+3)=log2x+log2y,求xy取值范围由已知log
已知log2(x+y)=log2x+log2y,则xy的取值范围已知log2(x+y)=log2x+log2y,则xy的取值范围已知log2(x+y)=log2x+log2y,则xy的取值范围log2(x+y)=log2x+log2y=lo
已知log2(x+y)=log2x+log2y,则xy的取值范围是多少?已知log2(x+y)=log2x+log2y,则xy的取值范围是多少?已知log2(x+y)=log2x+log2y,则xy的取值范围是多少?log2(x+y)=lo
已知log2(x+y)=log2x+log2y,则xy的取值范围是多少?已知log2(x+y)=log2x+log2y,则xy的取值范围是多少?已知log2(x+y)=log2x+log2y,则xy的取值范围是多少?log2(x+y)=lo