Given vectors u = 〈2, −1,3〉, v = 〈2,0, −2〉, and w = 〈−3,6,0〉, find the following.
a. 3u + v + w
b. w − 2v − u
c. 3 −12
−13
w
d. −2u − 3(5v − 3w)
e. ‖u‖, ‖v‖ and ‖w‖
f. show that ‖v‖ = ‖‖.
g. show that ‖u + v‖ ≠ ‖u‖ + ‖v‖.
h. show that ‖v − w‖ ≠ ‖v‖ − ‖w‖.
i.
‖u‖ u and
‖u‖

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

40 x 50 = 2000

step-by-step explanation:

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.

the answer would be 44.79

plz mark brainliest

step-by-step explanation: