Answer:
#27
2i , -2i, i, -i i^2 = -1
1(x - 2i)(x + 2i) 1(x-i)(x+i)
x^2 +2x-2x -4.2i x^2 -xi-xi -i
(x^2 + 4) x^4 + 1
x^2 +x^2 +11x
x^4 +5x^2 +4
+4+2+2+-1
*This was not simple for me
With _________, users will receive recommendations for items liked by similar users.
Answer:
Collaborative filtering
Explanation:
Collaborative filtering is an algorithms family in which there are various ways to determine the same users or items also there are various ways to determine the rating depending upon the same users rating
Therefore as per the given situation, the above is the answer
Hence, the same is to be considered