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Use the nth roots theorem to find the roots of the given complex number. exact answer a)Find the square roots of i? What is the counterclockwise degree from the positive x axis of 47.75 degrees? Why does the addition of impurity atoms to a semiconductor decrease its resistance? Let f(x) = 20. Use the definition of derivative to find f'(x).
f'(x)=? Prove the following assertions involving arbitrary sets A, B, C: (a) A × (B ∩ C) = (A × B) ∩ (A × C) (b) (A ∪ B) × C = (A × C) ∪ (B × C)?