Question

Find by drawing the resultant of two vectors 3 units and 4 unit inclined to each other at 30,90,20

Answer 1

two vectors can only involve one angle.
So what's the 30,90,30 supposed to mean?

in any case, use the law of cosines to find the magnitude,
then use the law of sines to find the angle

Answer 2

But i need the solving pls

Answer 3

Working and the diagram