3. Find the Cartesian equation of the following planes: (a) r . (i + j – k)=2 3. Find the Cartesian equation of the following planes: (a) r . (i + j - k)=2 November 15, 2021 Category: Chapter 11 - 3D Geometry , Maths , NCERT Exemplar Class 12 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related