Question: A point P needs to be located somewhere on the line AD so that the total length L of cables linking P to the points

A point P needs to be located somewhere on the line AD so that the total length L of cables linking P to the points A,B, and C is minimized (see the figure). Estimate the minimum value of L to two decimals.First, give the function to be minimized, using the variable x.L(x)=Then use your calculator or other software to estimate the minimum value of L to two decimal places.Do not attempt to solve the derivative =0 by hand.

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