How can I calculate the magnitude of vectors?

Jul 12, 2018

The magnitude of a vector can be calculated by the following steps:-

Represent the vectors on a cartesian plane. Let the vectors be $3$ and $- 5$

Now draw a vector triangle by drawing the horizontal and the vertical components of the two vectors which would result in the formation of a right angle triangle.

Now using the Pythagorean theorem find the unknown quantity.

Magnitude if simplly the modulus of the two given vectors.

i.e. root over(a^2+b^2)