CBSE Class 12-commerce Maths Vector Algebra
Introduction to Vector Algebra
A scalar quantity has only magnitude whereas a vector quantity has both magnitude and direction.
The cosine of the angles that a vector makes with the positive direction of the x, y and z axes respectively are called the direction cosines of that vector.
Sum of two vectors can be found using triangle law and parallelogram law of addition of vectors.
The vector addition is both commutative as well as associative.Properties of Vectors
Multiplication of a vector by a scalar, vector joining two points. Direction ratios and direction cosines of a vector in component form. Section Formula.Scalar Product of Two Vectors
Scalar product of two vectors, their properties, projection of a vector on a line.Cross Product
Vector or cross product. Properties of vector product.
