Let f map C2 into C2 be a linear operator such that for every x in C2, f(f(x)) = x. Let V+ = {x in C2 | f(x) = x} and  V- = {x in C2 | f(x) = -x}. Prove that every x in C2 can be written as x = x+ + x- , where x+ is in V+ and x- is in V- .

Q: What is the definition of a bounded linear operator between Banach spaces, and what are the…

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A: It's a highly simple question.