Mathematics
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OpenStudy (anonymous):
Friend Request: Teaching Roots
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OpenStudy (anonymous):
wazzup
OpenStudy (anonymous):
Friend doesn't have skype/any type of equation editor s i figured i'd try this
OpenStudy (anonymous):
keeewl dude!!
OpenStudy (anonymous):
trivia question who was zeus's daughter
OpenStudy (anonymous):
\[\sqrt{9}=\sqrt{3*3}=3\]
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OpenStudy (anonymous):
:(
OpenStudy (australopithecus):
\[\sqrt{x} = \]
x^(1/2)
OpenStudy (australopithecus):
just express as a fractional exponent
OpenStudy (australopithecus):
square root signs are too much work anyways
OpenStudy (australopithecus):
problem solved
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OpenStudy (australopithecus):
(9)^(1/2) = (3)^(1/2) * (3)^(1/2) = 3
OpenStudy (anonymous):
\[f(x)=\sqrt{3-3x}\] for x=-4,8
OpenStudy (anonymous):
\[f(-4)=\sqrt{15} \]
OpenStudy (anonymous):
\[{512}^{-1/3}=\frac{1}{\sqrt[3]{512}}\]
OpenStudy (anonymous):
=\[=\frac{1}{8}\]
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OpenStudy (anonymous):
\[\sqrt[3]{7}\times \sqrt[3]{49}\]
OpenStudy (anonymous):
\[\sqrt{x/3}\times \sqrt{x/12}\]
OpenStudy (anonymous):
\[(\frac{ x}{3})^{1/2}*( \frac{x}{12})^{1/2}=( \frac {x^2}{36})^{1/2}\]
OpenStudy (anonymous):
now putting it back into radical
\[\sqrt{\frac{x^2}{36}}=\frac{\sqrt{x^2}}{\sqrt{36}}=\frac{x}{6}\]
OpenStudy (anonymous):
Only when you can be for sure that no matter what x's value is , the answer will be positive is when you can split the square root up
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OpenStudy (australopithecus):
Just use this www.dabbleboard.com/
OpenStudy (australopithecus):
its an online whiteboard