Let T be a linear operator on a finite-dimensional vector space V, where V is a direct sum of T-invariant subspaces, say, V = W1⊕W2⊕·· ·⊕Wk. Prove that det(T) = det(TW1)· det(TW2) ·· · · det(TWk).

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Linear Algebra

In mathematics, problems can be solved by the arithmetic operators like addition, subtraction, multiplication, and division. In algebra, we represent the numbers by any letter called a variable. If these variables are of degree 1, then it is studied under linear algebra. The first-degree equations involving algebraic expressions are called linear equations. That is, if you represent it by drawing a graph you will get a straight line.