Prove: In homogenous linear equation in n variables, it must have a nontrivial solution if m<n.
Prove: A System of linear equation has 0, 1 or infinity many solution.
Prove: A is invertible if there is B such that AB=I=BA.
Prove: In homogenous linear equation in n variables, it must have a nontrivial solution if m<n.
Prove: A System of linear equation has 0, 1 or infinity many solution.
Prove: A is invertible if there is B such that AB=I=BA.
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