I got a problem that is squareroot -81 multiplied by squareroot -25
i dun get how to do it...i thought the answer would be 45
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bstodge
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81x25=2025
square root of 2025=???
???=answer
------- So?
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noraa
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There's no such thing as the square root of a negative number, it's an imaginary number.
So you get i*i which would be i squared.
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The Wolfhound
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That would be
sqrt (-81) * sqrt (-25) = sqrt (81*25) = 9*5 = 25
Clear?
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I got exams dude...college...its hard...i need to study...
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Suicidebooth
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well i suck at math it came to me when i did it and i forgot it so sorry
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hubbabubba52
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25..its like the easiset problem ever..
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noraa
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Quote: from The Wolfhound at 9:52 pm on Dec. 7, 2008
That would be
sqrt (-81) * sqrt (-25) = sqrt (81*25) = 9*5 = 25
Clear?
No, because sqrt of a negative is an imaginary!
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The Wolfhound
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College? You're kidding me, right? You're doing THIS in college? This is going to be easier than I thought...
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( KRNsoccerplayer24 )
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Quote: from The Wolfhound at 9:53 pm on Dec. 7, 2008
College? You're kidding me, right? You're doing THIS in college? This is going to be easier than I thought...
Im in really low math thats why..not so great at it.
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( KRNsoccerplayer24 )
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Quote: from DarkLink224 at 9:55 pm on Dec. 7, 2008
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JudeLaurence
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i is the sqrt(-1), so i^2 = -1.
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