Engineering
Mathematics
Introduction to Matrix
Algebra of Matrices
Solving System of Linear Equation Cramers Rule
Question
Solve for a, b and c if
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Solution
If two matrices are said to be equal, then their corresponding elements are also equal.
Then,
a = 3
a – b = – 1
⇒ b = a + 1 = 4
b + c = 2
⇒ c = 2 – b = 2 – 4 = – 2