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Cognoscenti
  • Member for 1 year, 11 months
  • Last seen this week
8 votes
1 answer
1k views

Proving a matrix identity involving inverses

8 votes
4 answers
364 views

Functional equation arising in computing an integral

6 votes
3 answers
348 views

Solving vector equations in $ℝ^3$

5 votes
1 answer
238 views

Limit of an integral involving a general $f(x)$

4 votes
2 answers
259 views

Geometric interpretation of Hermite's identity

4 votes
1 answer
70 views

A trigonometric integral and algebraic integral limit of the same kind

3 votes
1 answer
66 views

Limit of a sequence of the real root of a family of polynomials

3 votes
1 answer
92 views

Interpretation of change in direction cosines of a variable line: Pythagorean theorem for small angles?

3 votes
2 answers
77 views

Solving two equations for $(a-b)$

3 votes
1 answer
66 views

Limit with a geometric interpretation

2 votes
1 answer
32 views

Wrongly counting the number of discontinuities of a function with an inbuilt limit

2 votes
0 answers
96 views

Applying integration by parts repeatedly to get a Taylor series

2 votes
1 answer
110 views

Solving a functional equation $\alpha f(x + y) = f(x)f(y)$

2 votes
1 answer
158 views

Intermediate value theorem problem on finding solutions to $h(x,y)=0$

2 votes
1 answer
108 views

Solving a quadratic functional equation in $f(2x)$

2 votes
1 answer
88 views

Maximizing the value of an integral in an unknown $h(x)$

2 votes
1 answer
78 views

Evaluating a binomial sum with a probabilistic interpretation

2 votes
3 answers
75 views

Determining the curve to which variable line segments are tangent

2 votes
0 answers
36 views

Finding the sum of the floor function of $a,(b-1)/2,c$ given two symmetric sums

2 votes
1 answer
52 views

Linear coupled recursive relations and finding the limit of the ratio

1 vote
0 answers
21 views

Problem in vector dot product "factorisation"

1 vote
1 answer
50 views

Limit of $∞.0$ form of an integral and Riemann sum

1 vote
1 answer
43 views

Summing a binomial series that arose while counting functions

1 vote
0 answers
76 views

Number of triangles with sides in $\{1,\dots,n\}$

1 vote
1 answer
190 views

Locus of centroid, given the slopes of the sides

1 vote
1 answer
57 views

Reflection of a continuous differentiable curve about a line

1 vote
1 answer
44 views

Verifying the necessary and sufficient conditions for a function's inverse

1 vote
1 answer
117 views

Evaluating a challenging definite integral [duplicate]

1 vote
0 answers
20 views

Is the resemblance in the formula for distance between $2$ parallel planes and foot of perpendicular on a line a coincidence?

0 votes
0 answers
18 views

Writing the equation of a family of circles touching two circles