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设x,y∈R,a>1,b>1,若ax=by=3,a+b=2的最大值为A.2B.C.1D.
试题详情
设x,y∈R,a>1,b>1,若a
x=b
y=3,a+b=2
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAE0AAAAjCAYAAADR94eaAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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LJ2Zh+Xgg1/5EMImrtVCWzdd9zzau0Y5/nAc2XOeZ7ve2HemH187l4k1qo0U++zJcZiSIpZjH0j/
jCWHtThnbZFw/lLOueHWtDkOUtoVcOx12q2DB6OYNgAUtLarhKO49lUylUCNoL3G3nT9eBm0EgHv
OGeXPdHa7qTVLLQ1bGxavDCzlwL3dVxQFWDsy61FLjlKBblmHiYmfJmCPTG9SI1kTLyBUnLtuePT
3PO2kUDc1o21wOx+26slZWSmiH88NKi2jQjdigA8nhrf4Giwslx79XhoCiyN5yVxUIOCIqaDVvHR
0NA1sW7011VVhauDJsDC/u4P02b7WGiY4f3FwZpJK5tKl0XfJ5THQjsdug4ezGXL7SMNGhDBu+lU
T53j26DZXpv2x5kG7YSf/wIE/H76tucYyQAAAABJRU5ErkJggg==
)
的最大值为( )
A.2
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMJJREFU
OE+9k9ERxCAIRLmWbYdOrIMqaIKDmBggnjqTmePLGMAnu35EA2ZhCbOAvQSuUgDsKAGkUKMdSLBU
4WNb15rkc0CYz5+tkDAn+IaEoyPuyh8MrsUJW2ojOmaUr8m1CHToQYJSBo7UgaWWfAuruIaUZjBk
yEybWkwUW3fwgHn9V0g/LKdDYzAFu4Wao7ztgImCo96qufJk4Hk4yryAavwYXQvCIs6K0ZNGHh6U
zuX6BnsoT8Huo9Zy773uN476Auuf0qBUaSI5AAAAAElFTkSuQmCC
)
C.1
D.
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B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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Voa0Q5w311q4L9xUi+Q81w0WamLXWvgJ08JrdAgufl+Ywa5/IsyYE0Z8AU1KWxTU9bAtAAAAAElF
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)
C.4
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,则
的最大值为( )
A.3
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
C.4
D.