Mathematics: Find u * v, if u= 12j and v = i + 5j a (1,60) b (0,60) c -60 d 60

Find u * v, if u= 12j and v = i + 5j a (1,60) - id12516004223097, Tyrant4life

poppy1173

12.01.2022

The correct option is (d) 60.

Step-by-step explanation: We are given to find u * v, if the vectors u and v are defined as follows :

u=12j,~~~v=i+5j.

We know that

i.i=1,~~j.j=1,~~k.k=1,~~i.j=j.i=j.k=k.j=i.k=k.i=0.

So, we have

$u*v\\\\=(12j)*(i+5j)\\\\=12j.i+12j.5j\\\\=12\times 0+60\times 1\\\\=0+60\\\\=60.$

Thus, the value of u * v is 60.

Option (d) is CORRECT.

0,0(0 оценок)

csteward2917

12.01.2022

The correct answer for this problem would have to be D hope this helps:)

0,0(0 оценок)

cbrewer37

29.07.2020

200 is correct answer

Step-by-step explanation:

mrk brainliest plz

0,0(0 оценок)