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Let barr is a position vector of a variable point in Cartesian OXY plane such that (10hati-8hati-barr)=40 and p_1=max(barr+2hati-3hatj)^2),p_2=min{(barr+2hati-3hatj)^2}. A tangent line is drawn to the curve y=8/x^2 at the point A with abscissa 2. The drawn line cuts x axis at a point B. p_2 is equal to 1. 9 2.2sqrt2-1 3.6sqrt2+3 4. 9-4sqrt2 p_1+p_2 is equal to 1. 2 2. 10 3. 18 4. 5

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ANSWER :D,C


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