Question

What does the magnitude of a vector represent? a. the direction of the vector c. the length of the vector b. the difference between two vectors d. the sum of two vectors

Answer 1

The magnitude of a vector is the length of the vector. It is also known as the modulus of the vector. For any vector of the form <a,b>, the length is equal to sqrt(a^2+b^2). Note how this follows from the pythagorean theorem.