21let x = y = 6, then max value should be 36...max value cant be 26...no way...
IF x + y = 12, the maximum value of the product of xy is
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2159x + y = 12. What is the max value of the product of xy?how come not 36?
45IF WE TAKE X=6 AND Y=6 THEN XY=36....HOW CAN IT BE 26 ?
- Joyee Chakraborty The answer is 26.answer 36, not at all.Upvote·0· Reply ·2012-07-07 07:44:16
11look!
a+b=12
lets take a=11 and b=1.then,ab=11
if a=10 & b=2,then ab=20
a=9 & b=3,then ab=27
a=8 & b=4,then ab=32
a=7 and b=5,then ab=35
only when a=6=b,we can get the maximum value of ab i.e.6*6=36.