Proving Linearity of Matrix Operators: Is L(A)=2A a Linear Operator?

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SUMMARY

The discussion centers on proving that the operator defined by L(A) = 2A is a linear operator. To establish linearity, one must demonstrate two properties: first, that L(A + B) = L(A) + L(B) for any n x n matrices A and B, and second, that L(cA) = cL(A) for any scalar c. Both conditions confirm that L is indeed a linear operator, adhering to the definition of linearity in matrix operations.

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Dustinsfl
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L(A)=2A

My book doesn't have any examples of how to do this with matrices so I don't know how to approach this.
 
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Are you supposed to show that L is a linear operator? If so, just show that
1) L(A + B) = L(A) + L(B)
2) L(cA) = cL(A)

Here A and B are n x n matrices and c is a scalar.
 

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