Question

Aasalmulaikum to all of u........

.the difference of two unit vectors is a unit vector find angle between two vectors?....
plz help​

Answer 1

Angle between two vectors will be 60°.

Check the attached image.

Answer 2

Answer:

Wallikumsalaam....Here's your answer mate..

As question said...Sum of two unit vector is a unit vector.

Lets call these 2 unit vector as A and B vector.

magnitude of A=1

magnitude of B=1

magnitude of A+B=1

Now as you may recall the formula we studied...

magnitude of (A+B)=sqrt(A2+B2+2ABcos(x))

Here x represents the between 2 vectors

(A and B)

Now plugging the values as

A=1

B=1

And A+B=1

we can get cos(x)= -0.5

And this means x=120 degree

I hope this helps U..

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