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imulsion
  • Member for 11 years, 10 months
  • Last seen more than a week ago
  • N/A
  • United Kingdom
17 votes
6 answers
3k views

Expected number of rolls to get all sixes

5 votes
7 answers
7k views

The perimeter of the rectangle is $20$, diagonal is $8$ and side is $x$. Show that $x^2-10x+18=0$

4 votes
3 answers
273 views

How to calculate $(3+4i)\cdot(1+i)$

4 votes
2 answers
3k views

Solving equations of the form $ae^x + bx +c =0$

3 votes
3 answers
642 views

Proving the quadratic formula (for dummies) [duplicate]

3 votes
1 answer
2k views

Undefined term in Fourier series

2 votes
2 answers
138 views

Roots of a sixth degree polynomial

2 votes
2 answers
190 views

Fraction of original velocity in series of elastic collisions

2 votes
3 answers
269 views

Differentiation with the quotient rule

1 vote
1 answer
2k views

Proof that $e^x$ can be expressed in a series of ascending powers of $x$

1 vote
2 answers
63 views

Series question with unknown limit

1 vote
2 answers
160 views

Why does this work, and why is it wrong?

1 vote
5 answers
2k views

Inductive proof that every term is a sequence is divisible by 16

1 vote
2 answers
752 views

GCSE maths question concerning indices

1 vote
3 answers
1k views

Common logarithm question

1 vote
1 answer
273 views

How to show $\frac{300}{v} - \frac{300}{v+20} = 1.25$

1 vote
5 answers
190 views

Find the range of values that $x$ can take if $9 \log_x5 = \log_5x$

1 vote
0 answers
648 views

Using Fourier sine transform to solve PDE

0 votes
0 answers
47 views

Finding upper bound for sum

0 votes
2 answers
77 views

Equation with the discriminant

0 votes
6 answers
29k views

Question on Spearman's Rank Correlation Coefficient

0 votes
3 answers
181 views

Integrating $\frac{1}{1+e^x}$

0 votes
3 answers
734 views

Probability of success in $n$ trials

-1 votes
3 answers
1k views

Finding the coefficient of $x^{10}$