Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes, and one vertex in the plane . Largest volume is i have no idea how to get started. pls help.
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then solve for y,z and i got y=0, z=0 y=5/2, z = 16/9 and substitude y and z into V and i got V = 400/9 but it's not the right answer. anything wrong? Please help! due tonight
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