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Aug
26
comment How to prove $\int^{\pi/2}_0 \log{\cos{x}} \, \mathrm{d}x = \pi/2 \log{1/2}$
@idm this can be easily integrated by parts.
Aug
25
revised $A\rtimes B$ vs $B\rtimes A$?
improved smth
Aug
25
suggested suggested edit on $ \tan 1^\circ \cdot \tan 2^\circ \cdot \tan 3^\circ \cdots \tan 89^\circ$
Aug
25
suggested suggested edit on $A\rtimes B$ vs $B\rtimes A$?
Aug
25
comment How do I integrate $\frac{\sqrt{1-k^2\sin^2 x}}{\sin x}$
@Jean-ClaudeArbaut Thanks for this reference. Why'd in physics I didn't encounter the one's, that can be expressed with elementary functions?
Aug
25
comment How do I integrate $\frac{\sqrt{1-k^2\sin^2 x}}{\sin x}$
@Jean-ClaudeArbaut Maybe, as a physicist mine elliptic integrals are one, two, three complete/incomplete integrals.
Aug
25
revised How do I integrate $\frac{\sqrt{1-k^2\sin^2 x}}{\sin x}$
add k restriction
Aug
25
suggested suggested edit on How do I integrate $\frac{\sqrt{1-k^2\sin^2 x}}{\sin x}$
Aug
25
comment How do I integrate $\frac{\sqrt{1-k^2\sin^2 x}}{\sin x}$
@Jean-ClaudeArbaut It's definitely not an elliptic integral. It's actually can be expressed as a primitive functions.
Aug
25
revised How do I integrate $\frac{\sqrt{1-k^2\sin^2 x}}{\sin x}$
add integral sign
Aug
25
suggested suggested edit on How do I integrate $\frac{\sqrt{1-k^2\sin^2 x}}{\sin x}$
Aug
25
revised Is $\ln\sqrt{2}$ irrational?
improved formatting
Aug
25
suggested suggested edit on Is $\ln\sqrt{2}$ irrational?
Aug
25
suggested suggested edit on Is $\ln\sqrt{2}$ irrational?
Aug
24
comment Quotient rule, one sign wrong
@Paul Nope, you are correct, and the book answer is wrong.
Aug
24
revised Parametric Equations: Find $\frac{\mathrm d^2y}{\mathrm dx^2}$.
why this box?
Aug
24
suggested suggested edit on Parametric Equations: Find $\frac{\mathrm d^2y}{\mathrm dx^2}$.
Aug
24
comment Why is the result of $-2^2 = -4$ but $(-2)^2 =4$?
Because first one is $-(2^2) = -(2\cdot 2) = -4$ and the second one is $(-2)^2 = (-2)\cdot(-2) = 4$?
Aug
24
revised Solving the following integral (rational function, cubic over linear)
improved math formatting
Aug
24
suggested suggested edit on Solving the following integral (rational function, cubic over linear)