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@stepbystep001

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in Cramer’s law x1 = det(A)/det(A1)
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if A is a squared matrix then Ax = b is consistent for every nx1 matrix b
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if A is a squared matrix then Ax = b has only one solution for every nx1 matrix b
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A is nxn matrix then Ax = 1 has only the trivial solution
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Derived Channel pinned «الجبر الخطي Linear Algebra اسئلة على المنهج من الكتاب (متجاوبة)»
• If A is invertible  matrix then (A^-1) is...........
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84%
Invertible
7%
Non invertible
9%
Maybe invertible
• If A , B are both n×n invertible  matrix , then AB is.......
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74%
Invertible
7%
Non invertible
19%
Maybe invertible
• If A is invertible  matrix  , Then (A^T) is....
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84%
Invertible
7%
Non invertible
9%
Maybe invertible
If AB=I and BA=I ,then we say B is ......  of A
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25%
Transpose
71%
Inverse
4%
None of them
• For any square matrix B with real number elements, B +(B^T) is a ......... matrix,
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69%
Symmetric
27%
Maybe symmetric
4%
None of them
The sum of two symmetric matrices gives a ........ matrix as result.
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Symmetric
19%
Maybe symmetric
2%
Not symmetric
If A is invertable Symmetric Matrix then
(A^-1) is .......
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Symmetric
11%
Maybe symmetric
4%
Not symmetric
•If A is invertable Symmetric Matrix then (A(A^T)) is ........
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87%
Invertible
4%
Not invertible
9%
Maybe invertible
شوية نظريات زي اللي جت ف الميد تيرم
• If A is invertible  matrix then (A^-1) is invertible
• If A , B are both n×n invertible  matrix , then AB is invertable
• If A is invertible  matrix  , Then (A^T) is invertible
• If AB=I and BA=I ,then we say B is inverse  of A
• For any square matrix B with real number elements, B +(B^T) is a symmetric matrix,
• The sum of two symmetric matrices gives a symmetric matrix as result.
• If A is invertable Symmetric Matrix then
(A^-1) is Symmetric
• If A is invertable Symmetric Matrix then (A(A^T)) is invertible
تقييمك لامتحان الجبر
Final Results
26%
سهل
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متوسط
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صعب
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فاينل ال Arch
AND/NAND is not circuits.
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............. describes what the computer does.
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Computer Architecture
11%
Computer Organization