Mathematics
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OpenStudy (timaashorty):
Thanks for the help Bah, Shamil & Evan !
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OpenStudy (timaashorty):
\[\frac{ \sqrt{2 + \sqrt{5}} }{ \sqrt{2- \sqrt{5}} }\]
OpenStudy (timaashorty):
It;s written almost like that. ^
OpenStudy (shamil98):
wait so the √5 is inside another √ symbol?
OpenStudy (timaashorty):
√2+ √5 / √2- √5
Yes it's just like that
OpenStudy (timaashorty):
Not it's not in another simple it's just in one √.
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OpenStudy (shamil98):
would it not be negative one then?
√2/√2 = 1
√5/-√5 = -1
OpenStudy (timaashorty):
nope, this is how it there's no 1.
This how it looks like exactly
OpenStudy (shamil98):
Oh.
hm.
OpenStudy (timaashorty):
Do you know ? I'm timed ;c and still need 3 more to do ;/
OpenStudy (shamil98):
Are there answer choices?
You would multiply by the conjugate in this case.
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OpenStudy (bahrom7893):
\[\frac{\sqrt2+\sqrt5}{\sqrt2-\sqrt5}\] right? Answers are for the weak! I got this
OpenStudy (timaashorty):
There's no answer choices, it says I have to check my work. It's a workpad problem.
OpenStudy (bahrom7893):
multiply top and bottom by \[\sqrt2+\sqrt5\]
OpenStudy (anonymous):
Wouldn't it be 0?
OpenStudy (shamil98):
yeah the conjugate.
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OpenStudy (anonymous):
Divided it comes out to 1-1
OpenStudy (timaashorty):
Can you show the work ? while I do another one ?
I checked alpha and it gave me 'complex infinity.
OpenStudy (bahrom7893):
Guys stop confusing everyone. This turns into:
\[\frac{(\sqrt2+\sqrt5)^2}{(\sqrt2-\sqrt5)(\sqrt2+\sqrt5)}\]
OpenStudy (bahrom7893):
\[=\frac{2+2*\sqrt2*\sqrt5+5}{2-5}\]
OpenStudy (bahrom7893):
\[=\frac{2+2\sqrt{10}+5}{-3}\]
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OpenStudy (bahrom7893):
\[=\frac{-7-2\sqrt{10}}{3}\]
OpenStudy (timaashorty):
Wait that's the final answer ?
OpenStudy (bahrom7893):
yes
OpenStudy (timaashorty):
Yeee thankk you !
OpenStudy (timaashorty):
Can you help me with one more ?
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OpenStudy (timaashorty):
Bah get your butt back here !
OpenStudy (bahrom7893):
Bah is lazy.
OpenStudy (timaashorty):
quit being lazy. you did it in seconds :P it's easy for you. Please
OpenStudy (bahrom7893):
just post it..
OpenStudy (timaashorty):
Write this in simplest form
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OpenStudy (timaashorty):
Do i have to glue you in here or some ?
OpenStudy (bahrom7893):
that wont work
OpenStudy (timaashorty):
Stapler ?
OpenStudy (bahrom7893):
\[a^2/4\]
OpenStudy (timaashorty):
Show me how you got it. Pleaseee (:
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OpenStudy (bahrom7893):
Step one:
Read the question
Step two:
Think
Step three:
Think a bit more
Step four:
Make sure the answer is right
Step five:
Type the answer.
OpenStudy (timaashorty):
Bahrom. -.- I said pleaseee. =c
OpenStudy (bahrom7893):
\[(8a^{-3})^{-\frac{2}{3}}=\frac{1}{(8a^{-3})^{\frac{2}{3}}}=\frac{1}{(2a^{-1})^2}=\frac{1}{4a^{-2}}=\frac{a^2}{4}\]
OpenStudy (timaashorty):
Yay! One more.
OpenStudy (timaashorty):
@bahrom7893
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OpenStudy (timaashorty):
I just wanted to irratitate you, I need no more help ;p Lol Thank you Awesome Bahh [:
OpenStudy (bahrom7893):
i am very irratitated... -.-