Maximum angle Find the valu?e of x? that maxim?izes ? in the figure.

Solution 44E Step 1: The given diagram can be draw as follows Step 2: From the above diagram x tan =1 3 1 x =t1n ( 3 ) And 4x tan =2 3 1 4x =t2n ( 3 ) So the viewing angle from the x feet away is given by = +1 2 1 x 1 4x = tan ( 3 )+tan ( 3 )