Mathematics for IGCSE & O level - Vectors (Section 5 - No. 7)
Which of the following is true about finding the magnitude of a vector?
The magnitude is found by squaring only the y-component
The magnitude is found by squaring both components and then taking the square root of their difference
The magnitude is found by squaring both components and then adding the square roots
The magnitude is found by squaring both components and then taking the square root of their sum
คำอธิบาย
The magnitude of a vector is calculated by the formula √(x^2 + y^2).