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Tutors Answer Your Questions about Complex Numbers (FREE)
Question 52818: this question has been driving me nuts for days!!
it says to prove that:
(1+z)/(1+conjugate z) = z
so i have tried all sorts of things, i think that i am meant to change it into polar form to get the answer from that but all i do is end up going round in big circles or else end up with huge long lines of numbers and letters that are impossible to simplify!
help please!
Click here to see answer by AnlytcPhil(958)   |
Question 52810: When Sheila asked Margie to deliever camp supplies across the lake, they agreed to meet on the water. Shelia's boat can travel at 10km/h, while Margie's boat can do 12km/h. If the lake is 6.6 km wide and Sheila and Margie leave at the same time, how much time will it be before they meet?
Click here to see answer by funmath(2873) |
Question 53387This question is from textbook
: Erin's three test scores were consecutive odd integers. If her next test score is 18 points more than the highest score of the three tests, her total number of points will be 328. Find Erin's test score.This question is from textbook
Click here to see answer by stanbon(26259) |
Question 53388This question is from textbook
: Julius wieghs twice as much as each of his twin brothers. If each of the twins gain 5lb and Julius gains twice that amount, the sum of the three brother's wieght will be 240lb. How much does each wiegh right now?This question is from textbook
Click here to see answer by stanbon(26259) |
Question 53388This question is from textbook
: Julius wieghs twice as much as each of his twin brothers. If each of the twins gain 5lb and Julius gains twice that amount, the sum of the three brother's wieght will be 240lb. How much does each wiegh right now?This question is from textbook
Click here to see answer by wgomero(28) |
Question 53420This question is from textbook
: Erin's three test scores were consecutive odd integers. If her next test score is 18 points more than the highest score of the three tests, her total number of points will be 328. Find Erin's test scores.(not just the score on her last test.)There should be 4 answers.This question is from textbook
Click here to see answer by stanbon(26259) |
Question 53421This question is from textbook
: The width of a rectangle is 6cm less than the length. A second rectangle, with a perimter of 54 cm is 3cm wider and 2 cm shorter than the first. What are the dimensions for each triangle?This question is from textbook
Click here to see answer by aaaaaaaa(138) |
Question 52626: Which of the following statements is not true?
a. Multiplication distributes over subtraction.
b. Multiplication distributes over addition.
c. Exponents distrubute over addition.
d. Exponents distribute over multiplication
Click here to see answer by stanbon(26259) |
Question 53760This question is from textbook
: A total of 720 people attended the school basketball game. Adult tickets cost $2.50 each and student tickets cost $1.50 each. If $1220 worth of tickets were sold how many students and how many adults attended?This question is from textbook
Click here to see answer by checkley71(8405) |
Question 53758: Aaron, Betsy,and Charita work part time at the public library. Betsy works 4hours more each week than Aaron, and together they work as many as Charita. How long does each person work if their total is 45h?
Click here to see answer by funmath(2873) |
Question 53865: consider the following function
{(300,2),(-300,2) (92,1), (-92,1),(15,0),(-15,0),(1,1),(-1,1)}
a. identify its domain
b. identify its range
my answer a. {x:-300
b. {y:-1
my answer was wrong what did I do wrong
Click here to see answer by Nate(3495) |
Question 54003This question is from textbook
: Rachel spent $16.18 for some cans of dog food costing $.79 each and cans of cat food costing $.69 each. She bought 2 more cat food than dog food. How many cans of dog and cat food did she buy?This question is from textbook
Click here to see answer by checkley71(8405) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980
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