What modulo force F3 must be applied to the converging forces F1 = 2 N and F2 = 4 N, forms with the x-axis angle a = 30 ° and b = 60 °, so that the resultant of these three forces is equal to zero?

Immediately after payment you will receive a link to the zip file with the solution of the problem 1.1.5 (Chapter 1 - statics topic - 1.1: Addition and expansion of forces converging in the plane) on the theoretical mechanics of collection of short tasks Kep OE, JA Viba, OP Grapis, JA Svetinysh et al. Moscow publishing "High School", 1989, 2009, 2012. The task is made in the format word (typed or hand-written decision in a Word) or in manuscript form in the format gif, packed to the archive zip (open on any PC) .After checking the solutions would be very grateful if you leave your positive feedback.