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(a) Suppose z = em for some real number 6. Show that cos(6) = %(z + 2) and sin(6) = glitz 2). (b) Using the
(a) Suppose z = em for some real number 6. Show that cos(6) = %(z + 2) and sin(6) = glitz 2). (b) Using the above formulas and the fact that |z| = 1, show that sin2(9) + cos2(6) = 1
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