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4. What is the principal value of (-1 + i)3-1? 5. Evaluate the function in the form u + iv.
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SOS -340 16 Solution Here, given that 1-+03 Taking log both side weget lys Log(+1+) 3-4 = (3-1) Long (-14) now, cog (-til-dag[6126334= (212) 30 (ess( + 2 lezle) -2° in 3+2lang )){ prencióbal walue is (252) e 3114 cos (17 + 2009 (2) J211.63014 (2997- 131) ofrecies g ros) tison (97-2 log 2 (-14). (212) e cos ( 952092) tison ( 90-204)) 9 Preneipas value is 2/13 J3J SOT t ws. 2200 -isin2700 pers ) 225 (los 54- isin 54) 50 (Weknow that (eos oitising) = cos notisinnol - «2? */651554

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4. What is the principal value of (-1 + i)3-1? 5. Evaluate the function in the...
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