Username: kjcdb8er
Gender: Male
Member since: June 3, 2009
Birthday: January 1, 1979
Approved eNotes Editor
Since Jun 5, 2009
I am a: Teacher
Subjects:
Engineering, Mathematics, Physics
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About Me
Personal Info
Bio
I'm an electrical engineer, grew up in Texas and went to school in Utah.
Interests
I can always make time to play some hoops or 7-man football. I prefer to hike deep into the wilderness before setting up camp. All hail linux.
New Activity for kjcdb8er
- Answered a question in Math:
1. 4 cos²(2x) - 3 = 0
cos²(2x) = 3/4
cos(2x) = ± √(3/4) = ±√3/2
Remember,...
- Answered a question in Math:
Use the chain rule to differentiate this function.
d/dx (arctan(u)) = u'/(1 +...
- Answered a question in Math:
This problem is about moving the minus sign inside the parenthesis so that order...
- Answered a question in Science:
The concept of a field-effect transistor (FET) is conseptually very simple, and...
- Answered a question in Math:
Note that for large x, e^x >> x
9e^x - 3x ≅ 9e^x
6e^x - 4x ≅ 6e^x...
- Answered a question in Math:
The woman travels in a circle given by the equation x(t) = 20cos(7.5t), y(t) =...
- Answered a question in Math:
3sin( 2θ) + 2 = 1
3sin ( 2θ) = -1
sin ( 2θ) = -1/3
2θ = arcsin(-1/3) ≅...
- Answered a question in Math:
If the slope of a line is m, then the slope of a line perpendicular to it is...
- Answered a question in Math:
Let the two numbers be x and y. x is smaller.
"two times the smaller number" is...
- Answered a question in Math:
Factorization means that you take what is common between different terms, and take...
- Answered a question in Math:
F = ma
v = a * t
x = 1/2 a*t^2
(note these equations are only valid for a starting...
- Answered a question in Math:
49 increased (added) by two-times a number (N):
49 + 2 x N = ?
- Answered a question in Math:
When you have a complicated fraction, it helps to separate it into distinct parts....
- Answered a question in Math:
The Intermediate Value Theorem (abbreviated as IVT) says that if a continuous...
- Answered a question in Math:
(f+g)(x) is like saying f(x) + g(x); (f/g)(x) is like saying f(x)/g(x), and so on....
- Answered a question in Law:
Yes, absolutely. Of course, "to carry" is different from "possess" or own. In most...
- Answered a question in Science:
You'll have to be a little less ambiguous in your question. "One resistance is 5mA...
- Answered a question in Math:
The identity is:
atan(x) + acot(x) = pi/2
Your equation is
atan(x) + acot(1/3) =...
- Answered a question in Math:
You can answer this question by recalling (or looking up) an obscure trigonometric...
- Answered a question in Science:
The term supercomputer historically refers to a processing unit (which nowadays...
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