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Introduction to Vector - Physics Notes for Class 11 Science  LAWS RELATED TO VECTORS Addition of vectors The operation of addition of two vectors can be done by using the law called parallelogram law of vector addition. The addition can be done by taking two vectors as the adjacent sides of a parallelogram by joining their tales and sum can be taken by adding their corresponding components. If A=(x 1+ x 2+ x 3 ) and B=(y 1 +y 2 +y 3 ). Then A+B = (x 1 +y 1 ,x 2 +y 2 ,x 3 +y 3 ). Watch and understand the concept ‘addition of vectors’, for demos visit  Class 11 Physics  at Takshilalearning. Multiplication of vectors For multiplication of two vectors, there are several techniques. Includes Cross product: It is the operation which results in a vector that’s why it is also called as the vector product of two vectors. It is taken by the product of their magnitude and sine of the angle between them. Carried out by the formula A × B = ||A|| ||B|| ...