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Consider the two linear maps T, and T20 V, defined as T,(x, x ₂ x ) = (0, x ₂ x)) and T2(x, X2, X3) = (x,, 0, 0) Then (a) T, is idempotent but T, is not idempotent. 6) T, is idempotent but T', is not idempotent (c) Both T, and T, are idempotent (d) Neither T, nor T, are idempotent יר