1) ln(ln(x)) = 1
e^1 = ln(x) (convert to exponential form)
e = ln(x)
x = e^e = 15.154
2) The domain is the set of x values that makes 4 - 3x^2 >= 0
So solve 4 - 3x^2 = 0
4 = 3x^2
x^2 = 4/3
x = +or- 2sqrt(3)/3
The x values that satisfy the inequality are in the interior of that interval, so the domain is [-2sqrt(3)/3, 2sqrt(3)/3]
The range is [0,2] (graphed it.)
2006-07-04 13:03:46
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answer #1
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answered by mathsmart 4
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1:
In(Inx)=1
e^ (In(Inx)) = e ^ 1
lnx = e
e^ lnx = e ^e
x = e^ e
2)What's the domain and range of f(x)=square root [4-3(x^2)]
assuming "reals", we need
4 - 3(x^2) >= 0
3(x^2) <= 4
x^2 <= 4/3
-sqrt(4/3) <= x <= sqrt(4/3)
just guessing for the 'domain' ...
range ?? nahh .. you do the math
2006-07-04 20:04:48
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answer #2
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answered by atheistforthebirthofjesus 6
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1) ln(lnx)=1
(take the exponential of both the sides to eliminate the first natural log function), we get
lnx=e
(again take the exponential of both sides), we get
x=e^e
The answer is e raised to power of e
2) For f(x) to exist, 4-3(x^2) >=0;
thus, 4>=3x^2
x^2<=(4/3)
thus, Domain: x is between -sqrt(4/3) and +sqrt(4/3)
Range: -2 to +2
2006-07-04 20:09:38
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answer #3
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answered by saurabhruleth 1
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1)
ln(lnx) = 1
e^(ln(lnx)) = e^1 raise both sides
ln x = e simplify
e^(lnx) = e^e raise both sides again
x=e^e simplify
2).
sqr(4-3x^2)
Domain: 4-3x^2 must be positive
Set 4-3x^2=0
-3x^2=-4
3x^2=4
x^2=4/3
x= plus or minus sqr(4/3)
Domain: x extends from -sqr(4/3) to +sqr(4/3)
Range:
There is a max at 0 of 2 and a min at sqr(4/3) at about .070
Therefore y extends from .070 to 2
Domain
2006-07-04 20:04:16
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answer #4
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answered by Anonymous
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1)
ln(lnX) = 1
e ^ ln(lnx) = e^1
ln x = e
x = e ^ e
x = 15.154
2)
F(X) = â(4 -3x²)
4-3x² >=0
4 >=3x²
X² <= 4/3
-2/â3 <= x <= 2/â3
Domain of F(X) = [-2 / â 3 , 2 / â 3 ]
Range = [-2 , 2]
2006-07-04 21:16:19
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answer #5
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answered by M. Abuhelwa 5
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1.x=e^e where e=2.303 approximately
2.4-3x^2>=0 domain=[-4/(3^0.5),4/(3^0.5)]
range any positive real number
2006-07-05 05:31:36
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answer #6
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answered by ? 2
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Do you mean ln(x)=1? in that case to get rid of the ln you need to raise both sides to the power of e. Thus x=e...
2006-07-04 19:58:43
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answer #7
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answered by Natasha B 4
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