CBSE Class 12-science Answered
Direction ratios of a vector ?
Asked by | 10 Oct, 2008, 08:02: AM
Expert Answer
The angles a, b , c made by a vector r with the positive directions of x, y and z-axes respectively are called its direction angles. The cosine values of these angles, i.e., cosa, cos b and cosc are called direction cosines of the vector r denoted by l, m and n,respectively.The numbers lr, mr and nr, proportional to the direction
cosines are called as direction ratios of vector r
Answered by | 10 Oct, 2008, 10:02: AM
Application Videos
-
ProblemsbasedonIntoFunction-I
Video contains the question based on verification of a function to be Into ... -
ProblemsbasedonIntoFunction-II
Video contains the question based on verification of a function to be Into ...
Concept Videos
-
Properties of Inverse Trigonometry Part - 1
This video explains the properties of inverse trigonometric applications an... -
Graphical representation of inverse trigonometric funct ...
Graphical representation of inverse trigonometric functions and principle ... -
Continuous and Discontinuous function
Understand the meaning of function to be continuous and discontinuous, comb... -
Relationship between continuity and differentiability - ...
Relationship between continuity and differentiability, concept of composite... -
Introduction to Relations
This video explains the concept of relations and types of relation like Emp...
CBSE 12-science - Maths
Asked by leelasri11663 | 25 Apr, 2024, 11:34: AM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by aishaazmata | 24 Apr, 2024, 08:48: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by revengesena | 24 Apr, 2024, 06:08: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by mahammadsharifdakhani67 | 16 Apr, 2024, 07:43: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by 20muskaansharma23 | 08 Apr, 2024, 11:31: AM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by cherrycharishma512 | 01 Apr, 2024, 12:32: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by annapoornaa429 | 31 Mar, 2024, 08:23: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by shirishakuruva477 | 28 Mar, 2024, 09:52: PM
ANSWERED BY EXPERT
