CBSE Class 12-science Answered
For any vector 'a' show that : ix(axi) + jx(axj) + kx(axk)=2a
Asked by DIVYA GARG | 06 Jun, 2013, 01:35: PM
Expert Answer
Let a = mi + nj+ok
Then, ix(axi) + jx(axj) + kx(axk) =
i x ((mi + nj+ok) x i) + j x ((mi + nj+ok) x j) + k x ((mi + nj+ok) x k)
= i x (-nk + oj) + j x (mk -oi) + k x (-mj+ni)
= nj + ok + mi + ok+ mi + nj
= 2(mi + nj+ok)
= 2a
= RHS
Answered by | 07 Jun, 2013, 02:00: AM
Concept Videos
-
Vector multiplication concepts
Multiplication of a vector by a scalar, vector joining two points. Directio... -
Cross product
This video explains the properties of vector product especially cross produ... -
Introduction to vector algebra
This video explains the definition of vector and its types, direction angle... -
Concepts and application on properties of vector ...
Multiplication of a vector by a scalar, vector joining two points. Directio... -
Concepts on Vector cross product
Vector or cross product. Properties of vector product.
CBSE 12-science - Maths
Asked by sdmbotch1123 | 18 Jan, 2023, 11:01: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
If |𝑎⃗| = 3 and −1 ≤ 𝑘 ≤ 2, then |𝑘𝑎⃗| lies in the interval
(a) [0,6] (b) [−3,6] (c) [3,6] (d) [1,2]
Asked by mohdtayyab682 | 18 Jan, 2023, 10:34: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by durgaprasaddurgaprasad174 | 01 Jul, 2022, 05:05: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by sujaychandramouli | 24 May, 2022, 10:46: AM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by abhimeena1011 | 18 Jan, 2022, 10:43: AM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by gurupadam3101985 | 11 Apr, 2020, 10:06: AM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by lovemaan5500 | 07 Feb, 2020, 09:49: AM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by lovemaan5500 | 07 Feb, 2020, 09:49: AM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by lovemaan5500 | 16 Dec, 2019, 09:34: PM
ANSWERED BY EXPERTCBSE 12-science - Maths
Asked by Vivek.d8765 | 29 Oct, 2019, 10:14: PM
ANSWERED BY EXPERT
