hello i'm agatha esplana from Southern Luzon State University Lucban, Quezon Philippines..can you please help me.. explain what is the vectors in the plane?

Question

terenzreignz · Answer

I'm not entirely sure what 'vectors in the plane' means, could you be more specific?

zpupster · Answer

kamusta ka na ba?

scalars are magnitude
vectors are magnitude with direction. plane is just x and y direction

anonymous · Answer

iie... gomenasaii ... :[...

anonymous · Answer

|dw:1361884272395:dw| do you know how did equation get?

terenzreignz · Answer

If I'm not mistaken, this is the formula for the magnitude of a vector, given its x and y components... am I right?

terenzreignz · Answer

In other words, given the vector 
$$\large <a_1 \ , \ a_2>$$
Its magnitude is given by this formula
$$\large \sqrt{a_1^2+a_2^2}$$

anonymous · Answer

yes.. how that equation got?

terenzreignz · Answer

The magnitude of the vector is loosely defined as its length.  Say this is our vector
|dw:1361884580772:dw|

terenzreignz · Answer

It has its x component, a_1
and its y component, a_2
|dw:1361884639632:dw|

terenzreignz · Answer

So clearly, we also have this length here...|dw:1361884708066:dw|
And you can use the pythagorean theorem to find the length of the vector :)