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-- Problem 1. Define a function, magn, that computes the magnitude of a complex -- number. Recall that the magnitude of a complex number, a+bi, is...
-- Problem 1. Define a function, magn, that computes the magnitude of a complex
-- number. Recall that the magnitude of a complex number, a+bi, is defined
-- as: squareroot (a^2 + b^2). You can use the built-in Haskell function, sqrt,
-- in your answer. Put your definition below: