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physBa
  • Member for 2 years, 9 months
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3 votes
2 answers
131 views

Can the formula for the cubes $a^3 + b^3 + c^3 - 3abc$ be generalized for powers other than 3?

2 votes
2 answers
111 views

Why does $\frac{1}{\Delta x} \int^{x+\Delta x}_x f(u) du$ tend to $f(x)$ as $\Delta x \to 0$? (From proof of Fundamental Theorem of Calculus)

2 votes
2 answers
411 views

Deriving the derivative of $(1+x^m)^n$ from first principles and the binomial expansion?

2 votes
2 answers
159 views

Trouble integrating square of a sine

1 vote
3 answers
102 views

Solving 2nd order homogenous linear ODE with a squared coefficient

1 vote
2 answers
54 views

When is substituting the consequent of a material conditional allowed?

0 votes
1 answer
32 views

Why does the result for my line integral change when using a different parametrization?

0 votes
2 answers
96 views

Can I prove that a right angle triangle of sides $a$ and $b$ has a angles $θ$ and $Φ$ without trigonometry?

0 votes
0 answers
51 views

Finding the centre of a conic section with $xy$ term equal to $0$

0 votes
1 answer
295 views

How do I find a function with specific coordinates?

0 votes
0 answers
59 views

Finding the conjugate of a complex number with complex exponent

0 votes
2 answers
34 views

Question on Division of Infinite Integrals

0 votes
0 answers
16 views

Use of sine-cosine orthogonality rules to derive expressions for the Fourier coefficients

0 votes
1 answer
110 views

Why is the sum of cosines of angles defining a point [duplicate]

0 votes
1 answer
78 views

Why does there exist no real number such that it is equal to an integer multiple of any other number?

0 votes
0 answers
40 views

Finding a new polynomial with cubic transformed roots using the substitution method