complex numbers
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thanks BOB =) *HUGS* 115 cis 45* 3 solutions = 120* apart Are these correct? 115 cis 45* 115 cis 45 + 120 = 165* or is it (75*) 115 cis (45 + 120 + 120) = 285*?? or (195*)?? It's really Matthew!I found out what it is but I will
asked by kevin on November 5, 2006 
Math
Let cis Θ = cos Θ + i sin Θ. Let z1 = 3 cis 25 and let z2 = 4 cis 115 Find z2^6
asked by Peter on July 25, 2011 
PreCalc
Let cis Θ = cos Θ + i sin Θ. Let z1 = 3 cis 25 and let z2 = 4 cis 115 Find z2^6
asked by Peter on July 25, 2011 
CIS 115
CIS 115 week 7 exercise: Determine output. I need help with this week's exercise...DeVry CIS 115 week 7...please help! Using the questions on page 2, determine the output for each question. If input data is provided, be sure to
asked by dddiii on February 24, 2013 
equation complex number
z^4 + 81 = 0 (solve) change it to polar, then take the root. z^4= 81@180 z= 3@180/4 + n90 where n=0, 1, 2, 3 check: z= 3@180/4 + 3*90=3@315 z^4=81@(4*315)=81@1260= 91@180=81 you can check it at the other roots also. this is what
asked by kevin on November 3, 2006 
Precal
The number cis 75 + cis 83 + cis91 +...+ cis 147 is expressed in the form r cis(theta), where 0
asked by Josh on August 23, 2014 
Precal
The number cis 75 + cis 83 + cis91 +...+ cis 147 is expressed in the form r cis(theta), where 0
asked by Josh on August 23, 2014 
Trigonometry
QUESTIONS IM STUCK ON 6. Change 4√2  4√2 to trigonometric form A. 32 cis 135° B. 8 cis 225° C. 8 cis 45° D. 32 cis 45° 7. Simplify (2 cis 100°)7. A. 2 cis 700° B. 128 cis 280° C. 128 cis 340° D. 2 cis 340° 9.
asked by Erick on December 4, 2012 
Trigonometry
im stuck on these questions....... 6. Change 4√2  4√2 to trigonometric form A. 32 cis 135° B. 8 cis 225° C. 8 cis 45° D. 32 cis 45° 7. Simplify (2 cis 100°)7. A. 2 cis 700° B. 128 cis 280° C. 128 cis 340° D. 2 cis
asked by Rodrick on December 5, 2012 
CALC
1. The problem statement, all variables and given/known data cos(x) = 2 I was trying to solve that problem ignoring what people say about it not being defined and got a number strangely. I showed step by step so you can tell me
asked by Kate on July 27, 2010