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Is there a way to block an anonymous person?
I go to a lot of trouble to answer questions of a certain person who is anonymous, only to find that I cannot post the answer.
Apparently, that person has blocked me. It would be really nice if I never saw his questions, so I did not waste my time typing in an answer only to have it not post. Is there a way I can accomplish this?
2 AnswersYahoo Answers3 years agoWhat is 4 cos^4(x) + 4 sin^4(x) - cos(4x) after simplification?
3 AnswersMathematics3 years agoWhat is the sum from n=1 to ∞ of (-1)^(n+1) π^(2n) / (2n+1)!?
2 AnswersMathematics3 years agoHow can I find out?
I have had 3 violations in 10 days, but I have no idea which questions, nor which answers. The email I get does not say. When I try to appeal it says I am on the wrong user id, but this is the only one I use for Y!A. Is there some way to find out what I did wrong?
Notices and Errors4 years agoIs it true that for every positive integer n, the integer 1+10^(22n-11) is divisible by 11^2?
If so how do you prove it?
1 AnswerMathematics4 years agoDo neutrons ever split into protons and electrons?
I recently read that neutron stars form when great pressure causes protons and electrons to coalesce and become neutrons. Does the opposite ever occur?
2 AnswersPhysics4 years agoA circle is tangent to both lines 3x-4y+4=0 and 6x-8y-12=0 and to the x-axis. What is its area and the coordinates of its center?
If there is more than one such circle, find all areas and centers.
3 AnswersMathematics4 years agoHow long to factor the positive integer 7 969573 645636 172367 606393 692101 343801 072290 291424 600054 301455 452981 812190 477155 341797?
With modern factoring methods on a computer, about how long (these days) would it take to factor the 85 digit positive integer given above. (Spaces are for readability only).
1 AnswerMathematics4 years ago
