Class 11 Maths NCERT Solutions Three Dimensional Geometry Register with Takshila Learning and get easy access to CBSE Class 11 Online classes with NCERT solutions for all the chapters in a chapter wise manner.In the following article, we are going to discuss “ Three-diamensional geometry” from Class 11th Maths . Question: What are the coordinates of a point lying in YZ plane? Solution: Since the point is in YZ plane so its x coordinate is ‘0’.So the coordinate is of the form (0,y,z). Question: Name the octants in which the following points lie: (3,5,6) , (-5,-9,7) , (-3,5,8) , (-6,-8,-2) Solution: Using thetable we have (3,5,6) → I (-5,-9,7) → III (-3,5,8)→ II (-6,-8,-2)→ VII Question: What is the locus of a point for which x= 0, y= 0? Solution: The locus is z axis since on z axis x and y coordinates are zero. Question: What does x = 0 and x = a represent? Solution: x = 0 represents yz plane and
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