annameghan
annameghan
03-10-2017
Mathematics
contestada
rationalize the denominator of (click photo)
Respuesta :
liemonder
liemonder
03-10-2017
[tex]\frac{\sqrt{-49}}{(7-2i)-(4+9i)}=\\ \frac{\sqrt{-1*7*7}}{3-11i}=\\ \frac{7i}{3-11i}*\frac{3+11i}{3+11i}=\\ \frac{(7i)*(3+11i)}{3^2-(11i)^2}=\\ \frac{21i+77i^2}{9+121}=\\ \frac{21i-77}{130}=\\ \frac{-77+21i}{130}[/tex]
so it is the last option
Answer Link
VER TODAS LAS RESPUESTAS ( 92+ )
Otras preguntas
Which of these will likely be included in the text of a research paper when embedding a direct quotation? Author's last name Quotation marks Parenthetical docum
does anyone know what has integers as it's square root?
a farmer has planted 0.3 of his orchard with cherry trees. the orchard is 8.59 acres in size. how many acres are planted with cherry trees?
Which American general captured two cities in northeastern Mexico before the Mexican-American war was officially declared? Commander John Sloat General Zachary
need help with both questions!
5. Choose one of the topics listed below and write a five-sentence paragraph using chronological order to arrange the details of the paragraph. a. Signing on to
if 3 times a number is equal to 3/2, what is the number?
question #3) 3 times of 5 feet inch=____feet ____ inches
Mai spends 7 3/5 hours in school each day.. Her lunch period is 1/2 hour long, and she spends a total of 7/10 hour switching rooms between classes. The rest of
what is the lowest common denominator of 20 and 24
