Question

Find a*b

Answer 1

a=<5,2>
b=< 4,5>

Answer 2

So both a and b r vectors. Right?

Answer 3

yes

Answer 4

Do u wanna get dot product or cross product of vector a and b

Answer 5

Response plz!!!

Answer 6

Dot product please

Answer 7

Do u know i, j,k are three unit vectors along x,y and z axis respectively

Answer 8

I think its<20, 10> but idk

Answer 9

Ok . Dot product

Answer 10

4*5=?

Answer 11

2*5=?

Answer 12

Ya u r right

Answer 13

No what does that mean?

Answer 14

Add them

Answer 15

20+10=?

Answer 16

20

Answer 17

10

Answer 18

30?

Answer 19

30

Answer 20

Not 20

Answer 21

Result is 30

Answer 22

so 30 is the answer?

Answer 23

yes why are you questioning it?

Answer 24

Ya . U r correct!!"

Answer 25

Oh ok Thank you! That was easy.

Answer 26

Anyway if a and b are 2 vectors , then the dot product of a and b is
a*b=ab*cos theta
Right?

Answer 27

Can u help me with this other question too please? @shamim
Determine whether the vectors u and v are parallel, orthogonal, or neither
u= <6,-2> v=<2,6>

Answer 28

I mean
a dot b =a*b*cos theta

Answer 29

Theta is angle between vectors a and b

Answer 30

Yes so 6*2 *cos theta?

Answer 31

U should ask this another question in main page. I m there

Answer 32

Anyway glad to help u!!!

Answer 33

ok thanks

Answer 34

Welcome!!!!