Question

Find the product of v=2i+6j and w=-5i-2j

Answer 1

(2i+6j)*(-5i-2j)

Answer 2

?

Answer 3

Yup, vectors ^

Answer 4

do u mean dot product of ur given 2 vectors

Answer 5

Dot or cross?

Answer 6

or u mean cross product of ur given 2 vectors

Answer 7

its dot product sorry i left that out

Answer 8

Aw.

Answer 9

ok

Answer 10

u know\[i.i=1\]

Answer 11

\[j.j=1,k.k=1\]

Answer 12

but\[i.j=0\]

Answer 13

\[j.k=0,i.k=0\]

Answer 14

\[\vec v \cdot \vec w = (2\hat{i}+6\hat{j}) \cdot (-5\hat i - 2\hat j) = (2 \times -5) + (6 \times -2) = -10 - 12 = -22\]

Answer 15

do u need any explanation