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Math Help - Division of Variables Question

  1. #1
    Junior Member Coop's Avatar
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    Question Division of Variables Question

    Hi,

    It's been a long time since algebra so I just want to make sure I'm not making a stupid mistake on my homework. This is true, right?

    sqrt(P*t)/sqrt(P) = sqrt(t)

    Again, it may be simple, but thanks!
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  2. #2
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    Re: Division of Variables Question

    Quote Originally Posted by Coop View Post
    Hi,

    It's been a long time since algebra so I just want to make sure I'm not making a stupid mistake on my homework. This is true, right?
    sqrt(P*t)/sqrt(P) = sqrt(t)
    If p>0 then it is true/
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  3. #3
    Junior Member Coop's Avatar
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    Re: Division of Variables Question

    Okay thanks , and that's because you can't take the square root of a negative I assume?
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  4. #4
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    Re: Division of Variables Question

    Hello, Coop!

    This is true, right? . \frac{\sqrt{P\!\cdot\!t}}{\sqrt{P}} \,=\, \sqrt{t}

    Yes, you are right!
    Here are two ways . . .

    \frac{\sqrt{P\!\cdot\!t}}{\sqrt{P}} \:=\:\frac{{\color{red}\rlap{///}}\sqrt{P}\!\cdot\!\sqrt{t}}{{\color{red}\rlap{///}}\sqrt{P}} \:=\:\sqrt{t}


    \frac{\sqrt{P\!\cdot\!t}}{\sqrt{P}} \:=\:\sqrt{\frac{{\color{red}\rlap{\,/}}P\!\cdot\!t}{{\color{red}\rlap{\,/}}P}} \:=\:\sqrt{t}
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  5. #5
    Junior Member Coop's Avatar
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    Re: Division of Variables Question

    Thanks By the way, could you tell me how you input things like division and square root signs when you are on the forums?
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  6. #6
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    Re: Division of Variables Question

    Quote Originally Posted by Coop View Post
    tell me how you input things like division and square root signs when you are on the forums?
    It called LaTeX code

    [tex]\frac{\sqrt{P\cdot t}}{\sqrt{P}}[/tex] gives \frac{\sqrt{P\cdot t}}{\sqrt{P}}.

    Click on the “go advanced” tab. On the toolbar you will see \boxed{\Sigma} clicking on that give the LaTeX wraps, [tex] [/tex]. The code goes between them.
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  7. #7
    Junior Member Coop's Avatar
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    Re: Division of Variables Question

    Ah thanks I'm not a coder by any means :/
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