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Ian
Member Since February 8, 2009
About Ian:
Retired chap. Enjoys helping others with maths and physics.
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Recent Activity by Ian
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My Answers (490)
My Questions (5)
My Comments (6)
I am Watching (20)
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Asked:
Is mass or energy destroyed in a black hole? A ...
Is mass or energy destroyed in a black hole? A. Never. B. Sometimes. C. Always.
Posted by
Egao No Genki
4 years ago
Viewed 856 times
4 Answers
Last Answer
by
Ian
4 years ago
Asked:
How do you solve a non homogeneous equation? y
how do you solve a non homogeneous equation? y" + 3y' = 28cosh (4x)
Posted by
88fiza
5 years ago
Viewed 2,602 times
2 Answers
Last Answer
by
Ian
5 years ago
Asked:
Algebra
find the cosines of the interior angles of the triangle with vertices A(3,-1,1), B(4,1,0) and C(2,-3,0). find the vector component of AC orthogonal to AB.
Posted by
ricky
5 years ago
Viewed 365 times
2 Answers
Last Answer
by
Ian
5 years ago
Asked:
For p a prime, the poloynomial p[x]=x^p-Sum[x^j ...
For p a prime, the poloynomial p[x]=x^p-Sum[x^j,{j,0,p-1}] is irreducible over the rational numbers Q. Conjecture: p[x] is irreducible over Q for ALL p=1, 2, 3,... . Is this conjecture true.
Posted by
TMatrix
5 years ago
Viewed 407 times
1 Answer
Last Answer
by
Ian
5 years ago
Asked:
What is the least possible perimeter of a triangle ...
what is the least possible perimeter of a triangle whose sides have different positiv integers as its length?
Posted by
Austin
5 years ago
Viewed 1,387 times
1 Answer
Last Answer
by
Ian
5 years ago
Asked:
Is there theoretical evidence behind the basics ...
When I learned that the product of two imaginary numbers became the negative of the real-factor equivalent product, I did not get into why, but jsut found it to seem to make sense, without getting it ...
Posted by
frev
5 years ago
Viewed 693 times
2 Answers
Last Answer
by
Ian
5 years ago
Asked:
Polynomials
how do you identify factors from a polynomials
Posted by
mqdsk
5 years ago
Viewed 953 times
2 Answers
Last Answer
by
PGroot
1 year ago
Asked:
Physics
The gravitational force of attraction between Earth and the sun is 3.52 * 10^22 newtons. calculate the mass of the sun. show all work, including equation
Posted by
kathy
5 years ago
Viewed 762 times
2 Answers
Last Answer
by
Rocmike3
4 years ago
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Topics of Interest
math
cosmology
algebra
calculus
mathematics
maths
functions
differentiation
integration
polynomials
complex numbers
science & mathematics
quantum physics (basic)
a level maths
pythagorean triples
maximum and minimum
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Take a sec and thank Ian for helping
OronD
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"Ian You are doing a great job in Yedda. I see many of your math answers and you are always clear and accurate. Best personal regards, OronD. "
MackTheKnife
says:
"I really like your answers. They are very clear and well thought out. "
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