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MoreForJoe
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solve the equation in the set of complex numbers. give only exact answers, not approximations...
x^(2)x^(1)=(3/4)
 2 years ago
 2 years ago
MoreForJoe Group Title
solve the equation in the set of complex numbers. give only exact answers, not approximations... x^(2)x^(1)=(3/4)
 2 years ago
 2 years ago

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MoreForJoe Group TitleBest ResponseYou've already chosen the best response.0
how would you go about with the negative exponents?
 2 years ago

Arnab09 Group TitleBest ResponseYou've already chosen the best response.0
x^(n)=1/(x^n)
 2 years ago

MoreForJoe Group TitleBest ResponseYou've already chosen the best response.0
then how would you get rid of fractions?
 2 years ago

Arnab09 Group TitleBest ResponseYou've already chosen the best response.0
\[(2\pm 2\sqrt{2}i)/3\]
 2 years ago

MoreForJoe Group TitleBest ResponseYou've already chosen the best response.0
how'd you get that..?
 2 years ago

Arnab09 Group TitleBest ResponseYou've already chosen the best response.0
solving the equation... :D
 2 years ago

MoreForJoe Group TitleBest ResponseYou've already chosen the best response.0
nice haha but im still confused on what to do after the x's are on the bottom part of the fractions
 2 years ago

Arnab09 Group TitleBest ResponseYou've already chosen the best response.0
make the bottom part x^2 u will get like this: (1x)/x^2=3/4 after cross multiplication, u can get a quadratic expression, solve that u will get the answer :)
 2 years ago

MoreForJoe Group TitleBest ResponseYou've already chosen the best response.0
ok so i got to the (1x)/x^2=3/4 what do i do next? O.o
 2 years ago

Arnab09 Group TitleBest ResponseYou've already chosen the best response.0
cross multiplication..
 2 years ago

Dalvoron Group TitleBest ResponseYou've already chosen the best response.1
\[x^{2}x^{1}=(3/4)\]\[\Leftrightarrow\frac{1}{x^2}\frac{1}{x}=\frac{3}{4}\]
 2 years ago

yajjnobee Group TitleBest ResponseYou've already chosen the best response.0
agree with dalvoron. Crossed multiply it and get xx^2=3/4. then transpose 3/4 to the other side:)
 2 years ago

MoreForJoe Group TitleBest ResponseYou've already chosen the best response.0
am i supposed to get \[1\pm \sqrt{2}i/2\]?
 2 years ago

Dalvoron Group TitleBest ResponseYou've already chosen the best response.1
No need for complex numbers here.\[\frac{1}{x^2}\frac{1}{x}=\frac{3}{4}\]\[\Leftrightarrow \frac{4}{x^2}\frac{4}{x}=3\]\[\Leftrightarrow 44x=3x^2\]
 2 years ago

MoreForJoe Group TitleBest ResponseYou've already chosen the best response.0
thanks! i just use the quadratic formula and then get both answers :D
 2 years ago

Dalvoron Group TitleBest ResponseYou've already chosen the best response.1
Quite right, quite right. Regular factorising is possible also. What did you get as your solutions for x?
 2 years ago

Dalvoron Group TitleBest ResponseYou've already chosen the best response.1
Correct, good job!
 2 years ago

MoreForJoe Group TitleBest ResponseYou've already chosen the best response.0
THANKS :D
 2 years ago

MoreForJoe Group TitleBest ResponseYou've already chosen the best response.0
i have a few more problem that i cant get .
 2 years ago
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