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On July 7, HRD Minister Ramesh Pokhriyal announced a major CBSE syllabus reduction with 30% of the syllabus slashed for the year 2020-21 for classes 9 to 12 because of the reduction in classroom teaching time due to the Covid-19 pandemic and lockdown.
CBSE has rationalized the syllabus with the help of suggestions from NCERT and the same has been notified by a new CBSE notification as well.
Deleted syllabus of CBSE Class 12 Mathematics
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Gaurav Seth 5 years, 1 month ago
On July 7, HRD Minister Ramesh Pokhriyal announced a major CBSE syllabus reduction with 30% of the syllabus slashed for the year 2020-21 for classes 9 to 12 because of the reduction in classroom teaching time due to the Covid-19 pandemic and lockdown.
CBSE has rationalized the syllabus with the help of suggestions from NCERT and the same has been notified by a new CBSE notification as well.
Deleted syllabus of CBSE Class 12 Mathematics
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Gaurav Seth 5 years, 1 month ago
Skew Symmetric Matrices (Square Matrix)
A square matrix A = [aij] is said to be skew symmetric matrix if A′ = – A, that is aji = – aij for all possible values of i and j.
Now, if we put i = j, we have aii = – aii. Therefore 2aii = 0 or aii = 0 for all i’s.
This means that all the diagonal elements of a skew symmetric matrix are zero.

Numerical:

Solution: Notice that aji = – aij for all possible values of i and j. Thus it is a skew symmeticmatrix.
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Sahil Verma 5 years ago
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