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Mathematics 21 Online
OpenStudy (smurfy14):

Rewrite the expression without using absolute value symbols.

OpenStudy (smurfy14):

\[|√(5)-(5/2)| \]

OpenStudy (anonymous):

|x| = sqrt(x^2)

OpenStudy (smurfy14):

i dont see how that helps?

OpenStudy (saifoo.khan):

\[\frac{5-2\sqrt{5}}{2}\]

OpenStudy (smurfy14):

is that the answer?

OpenStudy (saifoo.khan):

Yeshh!

OpenStudy (smurfy14):

ok cool thanks! how did you get it?

OpenStudy (saifoo.khan):

Calc.

OpenStudy (anonymous):

\[(5/2)-\sqrt{5}\] lcd=2 \[2*\sqrt{5}=2\sqrt{5}\] so \[(5-2\sqrt{5})/2\]

OpenStudy (smurfy14):

why do you subtract -sqrt5 from 5/2?

OpenStudy (saifoo.khan):

Ajmal's right.

OpenStudy (saifoo.khan):

bcz that is given in the equation!

OpenStudy (smurfy14):

im lost :/ the equation says sqrt5 - 5/2 not 5/2- sqrt5

OpenStudy (anonymous):

we both r wrong saif i thought the question is (5/2)-sqrt5 but the question is sqrt5-(5/2) lcd=2 \[2*\sqrt{5}=2\sqrt{5}\] so \[(2\sqrt{5}-5)/2\]

OpenStudy (saifoo.khan):

No, wait.

OpenStudy (saifoo.khan):

Sorry about the image quality,

OpenStudy (smurfy14):

\[2\sqrt{5}-5 \over 2\] so its like this?

OpenStudy (saifoo.khan):

look there^

OpenStudy (anonymous):

but http://www.wolframalpha.com/input/?i=sqrt5-%285%2F2%29

OpenStudy (saifoo.khan):

u missed the MODS>

OpenStudy (anonymous):

yep

OpenStudy (smurfy14):

soo which one is right mathpro?

OpenStudy (saifoo.khan):

so after mods, they answer will be mine.

OpenStudy (anonymous):

yup i agree

OpenStudy (saifoo.khan):

=)

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