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bubbliiiiiiii
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1/p>r/r^2+2;bubbliiiiiiii wrote:
1) p=r;
we have 1/r> r/r^2+2;
now consider r=-3 we have; 1/r =-1/3
and r/r^2+2=-3/11; now -1/3<-3/11; i.e. inequality 1/p>r/r^2+2 doesn't hold true;
now consider r=3; we have; 1/r= 1/3;
and r/r^2+2=3/11, now 1/3>3/11; i.e. inequality 1/p>r/r^2+2 holds true;
hence 1 alone is not sufficient to answer the question.
2)
r>0; insufficient as we don't know the relationship between r and p;
combining yes we will consider only positive cases for which answer will always be yes as shown above.
hence C
