How to find the Angle between Vectors

#anglebetweenvectors

[Vikash]

Now crystal clear sir, i am struggling this topics for months, you made it simple sir thank you sir 🎉

[Applehivec]

This just helped me figure out a problem I have been confused on for weeks! Thank you so much for your help!

[garg_utkarsh]

Good evening/ morning sir.

Firstly i want to thank you for this simple yet very helpful explanation.

And lastly, i have a doubt that what if we don't know the value of (cos^-1)(-2/5√5)

[saara]

Simple an straight to understand 👏👏👏 I love it

[thrigunreddykommidi]

sir you are amazing at explaning🎉🎉👏👏👏👏👏👏👏

[SalmaAhmed-ouqf]

Thank u so much ❤️I had an assignment due tommorrow

[cxflufb]

find the angle between vectors ā=5i+3j-2k and b=-i+4j+k
Sir Pls help with this I’m confused or anyone

[flocierplays]

Do we have to put modulus and then 90 minus the angle if we want to find acute.

[sharonekoni]

Thanks sir for the wonderful lecture .My question is why are we using COS-1 to multiply the figures?

[NicholasMusowe-juzg]

Well explained sir, kindly help me with these two questions:Factorise x^3-4x^2-3x+18 and prove that please

[brilliantmind]

Sir i will rest in peace by this speed of learning 😂😂😂😂😂
I have 45 seconds in classs to doo

[mikemartelles]

very helpful for my physics course! thank you fine sir!

[felicatto]

hello what if the vectors are like
a= 3i + 2j
b= i + 5k
(examples made up in my head)

if i will find a dot b will it be
(3×1)+(2×0)+(0×5) or (3×1)+2+5 ???

[arzeeshabutt]

ufff rhankyousooomuch very and well explainedddd.

[emmanuelchulu]

What if you don't have a value....eg ai+j