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...P a g e mathematics notes for class chapter vector algebra has direction and magnitude both but scalar only of is denoted by or it non negative equality vectors two b are said to be equal written as if they have i same length ii the parallel support iii sense types zero null whose initial terminal points coincident called unit unity which n free point not specified then iv having that given opposite v like unlike when vi collinear supports vii coinitial viii coterminous ix localized drawn through in space x coplanar system their plane otherwise www ncerthelp com visit all ncert solutions text videos cbse syllabus note many more xi reciprocal known addition let any from o sum bya this triangle law parallelogram oacb completed with oa ob adjacent sides oc defined also resultant process composition properties commutativity c associativity additive identity inverse k multiplication scalars difference subtraction product important m ma mn equation joining y z component q op j oq its positio...