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GROUP WORK 4, SECTION 2.5Swimming to the ShoreA swimmer crosses a river starting at point A and ending at point B, following the path shown below. Provethat for some value x, the swimmer’s distance d (P x , A) from A is the same as the distance d (P x , B) fromB.yBd(P x , B)P x78Ad(P x , A)Swimmer’s Path0a x b x
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