Question

if |A| + |B| = |A+B| then angle between A and B is?

Answer 1

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Answer 2

it is 0 degree or they are in the same direction and are on the same line.

Answer 3

I thought it was \(180^{\circ}\)?

Answer 4

It should not be 180..

Answer 5

That would mean one is on the same line but going in the opposite direction.
That certainly wouldn't make
|A| + |B| = |A + B| true

Answer 6

Hmm, can you explain more?

Answer 7

NO...

Ha ha ha ha...

Answer 8

Drawing, anyone? :D
Here are two vectors with a 180 degree angle between them

Answer 9

Is it not 180 degrees? :-|

Answer 10

The sums of the magnitudes of these vectors would be represented by the length of this line... but the magnitude of their sum, which is roughly this vector...

Answer 11

Is smaller :D

Answer 12

OK, thank you :-)

Answer 13

Oh look^
Doesn't that look nicer? :D

Answer 14

Is it that one?

Answer 15

Yeah, and maybe it's apparent that the sum of their magnitudes is the magnitude of their sum.

Answer 16

Haha, indeed.