If a vector A is multiplied by a real number (say n), the vector of same nature is obtained but its magnitude is n times that of A.
If vectors are arranged as trigonal planar and have equal magnitude, it is an ideal case of zero resultant.
I think the best technique for memorizing is by assigning meaningfulness to things that are to be memorized.
Or in other words, relating things with a memorable story, simply, creating a story.
Do you remember yourself teaching us to memorize things easily. We had related words to a story and almost everyone in the class remembered at least 25 words among the total of 30. I still remember "Bhachyeko Haat". Haha!
Memory export Jim Kwik says that anything combined with emotion becomes a...

very fine!
Glad to hear, miss!