This is one of the difficult question in this chapter.
The vectors a = 3i - 4j - k (3, -4, -1) and b = 2i + 3j -6k (2, 3, -6) are the diagonals of a parallelogram. Show that this parallelogram is a rhombus, and determine the lengths of the sides and the angles between the sides.
Yes, I know what a rhombus is and some of it's properties.
I used the dot product for the 2 Vectors given which = 0 therefore I know that the 2 vectors bisect each other in the rhombus. So, how do I find the side lengths and the angle? Thanks
Thanks dude for not giving the answer! After taking a closer look at it I understood how you got the Side equation! But No idea how use arctan since we don't learn that in high school but I used tan instead given that it's right triangles and got the correct angles. Thanks sooo much! Speedy and Fast!