Homework 1.2 Imaginary Numbers Rewrite each expression in standard form. 1. ! ! 2. ! !" 3. ! ! 4. ! !" 5. ! !"# 6. ! !"# Add, subtract, multiply and divide complex numbers. 7. 3 + ! ! + ! ! 8. 5 + ! ! − (3 − ! ! ) 9. 2! ! 3! ! 10. 5 − 6! (7 − 2! ) 11. (−3 + ! )(8 + 5! ) 12. (2 + 3! )(−6 − 2! ) 13. !!! !!!! 14. !!!! !!!! 15. Which of the following is NOT a real number? (a) 6 (b) −36 (c) 6 (d) 6! ! Explain your choice: _________________________________________________________________________________________________
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Homework 1.2 Imaginary Numbers Rewrite each expression in standard form. 1. !! 2. !!" 3. !!
15. Which of the following is NOT a real number? (a) 6 (b) −36 (c) 6 (d) 6!! Explain your choice: _________________________________________________________________________________________________
(b) −36
Homework 1.2 Imaginary Numbers Solutions Rewrite each expression in standard form. 1. !! 2. !!" 3. !!
15. Which of the following is NOT a real number? (a) 6 (c) 6 (d) 6!! Explain your choice: −36 = 6!, which is an imaginary number. Imaginary Numbers are not real numbers.