Introduction#!#DR#!#DC

Introduction Of Tringle|Introduction Of Quadrilaterals|OMR

Introduction of functions | Introduction of Domain | Codomain and Range

Dc's ,dr's and Symmetric Form OF Equation OF line

Basics OF 3D dc's and dr's Symmetric Form OF Equation OF line

Relation between DC & DR|| 3 D method || Angle between 2 vectors|| Unit Cube || Illustration

For a transistor , alpha_(dc) and beta_(dc) are the current ratios, then the value of (beta_(dc) - delta_(dc))/(alpha_(dc) . beta_(dc))

Dr. Robert Edwards , Dr . Patrik Steptoe and Dr. Indira Hinduja are famous for their work on

A mirror and source of light are situated at the origin O and a point on OX respectively. A ray of light from the source strikes the mirror and is reflected. If the DRs of the normal to the plane of mirror are 1,-1,1, then DCs for the reflacted ray are :