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\(\displaystyle \sum _{n=1 }^{ \infty }{ \frac { n }{ n+{ n }^{ 2 }+{ n }^{ 4 } } } \)

My sir asked us a question that was going to be simple and easy but I think there was something going in his mind and he gave us a question ...

In England, with respect to the initial population each year, the death rate is \(\frac{1}{46}\) and the birth rate is \(\frac{1}{33}.\)

If there were no emigration ...

Written on a blackboard is the polynomial \[{ x }^{ 2 }+x+2014\] Calvin and Hobbes take turns alternatively (starting with Calvin) in the following game. During his turn, Calvin should either ...

\[Solve:\quad x+2+y+3+\sqrt { (x+2)(x+3) } =\quad 39\]

\[{ (x+2) }^{ 2 }+{ (y+3) }^{ 2 }+(x+2)(y+3)=\quad 741\]

If the answer is ...

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