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I started with Euler's identity and manipulated it |
2011-11-14 |
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From anonymous:
I started with Euler's identity and manipulated it
e^i*pi=-1
e^-i*pi=(-1)^-1
e^-i*pi=-1
e^-i*i*pi=(-1)^i
e^--pi=(-1)^i
e^pi=(-1)^i
type it in in a calculator and you get e^pi=23.1406926... and
(-1)^i=0.0432139183... What did I do wrong?
Answered by Robert Dawson. |
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Solve e^x + e^(x+1) = 250 |
2008-08-25 |
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From Laura:
"solve this equation correct to three decimals"
e^x + e^x+1= 250
Answered by Penny Nom. |
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The inverse of a function |
2008-05-03 |
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From keith:
please help me find the inverse of this function:
h(t) = 2 + 4 ln(1-5t)
Answered by Stephen La Rocque. |
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Two derivatives |
1999-11-16 |
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From Gina Renicker:
The derivative of: y=e(xlnx) and y=x2arctan(x1/2)
Answered by Harley Weston. |
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Slopes of curved lines |
1999-06-09 |
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From Stephen Ehrler:
When one plots the graphs of y=2x, y=3x, y=xx When each of these graphs pass through point (0,1) do they have the same slope? I know they are different lines but is it possable that they have the same slope at point (0,1).
Answered by Harley Weston. |
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Natural Logarithm Functions |
1997-04-23 |
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From Rickson:
The following two questions are some of my son's homework that he is having trouble with......any advice or assistance would be appreciated. (eX)5=1000.............the X and 5 are exponents lnx + ln(x+3) = ln10 In each question the problem is to find x.
Answered by Harley Weston. |
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