Answer :

(1, 3)

Let P(x,y) be the position of the jet and the soldier is placed at A(3,2)


As y=x2+2 or y-2=x2

؞ AP2=(x-3)2 + x4=z (say)

؞ 2x-6+4x3=0

Put x=1


؞ x-1 is a factor


or x=1

(at x=1)>0

؞ z is minimum when x=1,y=1+2=3

Point is (1,3)

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