The task of the theoretical mechanics (termehu)

Task: The task of the scheme required to find the point of application and direction of the force on the specified in the table section of a composite structure, in which specified in the "find" of the reaction component due to point B has a maximum or minimum value. Option 2 diabetes plot. Find Mbmin
a = 0.7 m
b = 0.3m
a (alpha) = 45 degrees.
M = 400nm
q = 300N / m
F1 = 600m
F2 = 500m