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Grade 12Algebra

The region in which the inequality logxlogyx>0 is satisfied is infected by a deadly virus. If Mr. Safe walks along the curve y=[x]+lxl+10π starting from x=0 & moving towards positive x-axis. What are the chances of survival of Mr. Safe is (in percent)

Profile image of harshit agarwal
16 Years agoGrade 12
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1 Answer

Profile image of askIITianexpert IITDelhi
16 Years ago

The stated inequality means following things:

X,Y>0 ; X,Y≠1 (for logs to be defined)

X>Y for X,Y>1or X,Y<1 (again from properties of log if logab>c then b>ac for a>1 otherwise b<ac )

X<Y for X>1,Y<1orX<1,Y>1(condition X<Y for X>1,Y<1 is impossible.)

Now curve clearly shows that Y>X & Y>1.So Mr.Safe will be safe after X=1.