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CAPITULO XXXII

CANTIDADES IMAGINARIAS
Ejercicio 262
  1. 1–ipor1+i (1–i ) (1+i ) = 1 2 – i 2 =1–(–1 ) =1+1 =2
  2. 3+2 –1 por3–2 –1 (3+2 –1 ) (3–2 –1 ) = 3 2 – (2 –1 ) 2 =9–4(–1 ) =9+4 =13
  3. 2 –5ipor 2 +5i ( 2 –5i ) ( 2 +5i ) = (2 ) 2 – (5i ) 2 =2–25 i 2 =2–25(–1 ) =2+25 =27
  4. 2 3 +4ipor2 3 –4i (2 3 +4i ) (2 3 –4i ) = (2 3 ) 2 – (4i ) 2 =4( 3 ) –16 i 2 =12–16(–1 ) =12+16 =28
  5. 5– –2 por5+ –2 (5– –2 ) (5– –2 ) = 5 2 – ( –2 ) 2 =25–(–2 ) =25+2 =27
  6. –9– –5 por–9+ –5 (–9– –5 ) (–9+ –5 ) = (–9 ) 2 – ( –5 ) 2 =81–(–5 ) =81+5 =86
Categories: Capítulo XXXII