Question and Answers Forum

All Questions Topic List

OthersQuestion and Answers: Page 1

Question Number 224466 Answers: 1 Comments: 2

Question Number 224417 Answers: 1 Comments: 4

Question Number 224406 Answers: 1 Comments: 0

Question Number 224106 Answers: 0 Comments: 1

Question Number 224092 Answers: 0 Comments: 3

what′s the matter? yesterday the app was not accessible for many hours. now it seems to work normally again. but actually it doesn′t, at least with me. when i tip “view older” to scroll through the old posts, the app crashes always at some point, showing a message “Math Editor isn′t responding. × Close it ⊝ Wait” are you also experiencing the same problem? what has happened since yesterday?

$${what}'{s}\:{the}\:{matter}? \\ $$$${yesterday}\:{the}\:{app}\:{was}\:{not}\:{accessible} \\ $$$${for}\:{many}\:{hours}.\:{now}\:{it}\:{seems}\:{to} \\ $$$${work}\:{normally}\:{again}.\:{but}\:{actually} \\ $$$${it}\:{doesn}'{t},\:{at}\:{least}\:{with}\:{me}.\:{when} \\ $$$${i}\:{tip}\:``\boldsymbol{{view}}\:\boldsymbol{{older}}''\:{to}\:{scroll}\:{through} \\ $$$${the}\:{old}\:{posts},\:{the}\:{app}\:{crashes}\:{always} \\ $$$${at}\:{some}\:{point},\:{showing}\:{a}\:{message} \\ $$$$``{Math}\:{Editor}\:{isn}'{t}\:{responding}. \\ $$$$×\:{Close}\:{it} \\ $$$$\circleddash\:{Wait}'' \\ $$$${are}\:{you}\:{also}\:{experiencing}\:{the}\:{same} \\ $$$${problem}?\: \\ $$$${what}\:{has}\:{happened}\:{since}\:{yesterday}? \\ $$

Question Number 224049 Answers: 1 Comments: 0

Question Number 223954 Answers: 2 Comments: 0

Question Number 223851 Answers: 1 Comments: 0

Question Number 223779 Answers: 1 Comments: 0

Question Number 223896 Answers: 0 Comments: 2

Question Number 223666 Answers: 2 Comments: 0

Question Number 223591 Answers: 1 Comments: 12

Question Number 223255 Answers: 2 Comments: 0

Which of the following complex numbers is equivalent to ((3−5i)/(8+2i))?(Note: i=(√(−1))) A)(3/8)−((5i)/2) B)(3/8)+((5i)/2) C)(7/(34))−((23i)/(34)) D)(7/(34))+((23i)/(34))

$${Which}\:{of}\:{the}\:{following}\:{complex} \\ $$$${numbers}\:{is}\:{equivalent}\:{to}\:\frac{\mathrm{3}−\mathrm{5}{i}}{\mathrm{8}+\mathrm{2}{i}}?\left({Note}:\:{i}=\sqrt{\left.−\mathrm{1}\right)}\right. \\ $$$$\left.{A}\right)\frac{\mathrm{3}}{\mathrm{8}}−\frac{\mathrm{5}{i}}{\mathrm{2}} \\ $$$$ \\ $$$$\left.{B}\right)\frac{\mathrm{3}}{\mathrm{8}}+\frac{\mathrm{5}{i}}{\mathrm{2}} \\ $$$$\: \\ $$$$\left.{C}\right)\frac{\mathrm{7}}{\mathrm{34}}−\frac{\mathrm{23}{i}}{\mathrm{34}} \\ $$$$ \\ $$$$\left.{D}\right)\frac{\mathrm{7}}{\mathrm{34}}+\frac{\mathrm{23}{i}}{\mathrm{34}} \\ $$

Question Number 223101 Answers: 0 Comments: 6

Question Number 222995 Answers: 1 Comments: 0

Question Number 222961 Answers: 1 Comments: 0

Question Number 222937 Answers: 1 Comments: 0

Prove that the following identity holds : Σ_(λ∈Z[i]) ((1/((1 + 3λ)^3 ))) = ((π^(9/2) (√(1 + (√(3 )))))/(2^(5/4) 3^(27/8) Γ((3/4))^6 )) Where Z[i] = {a + bi : a,b ∈ Z} denotes gaussian integers !

$$ \\ $$$$\:\:\:\:\mathrm{Prove}\:\mathrm{that}\:\mathrm{the}\:\mathrm{following}\:\mathrm{identity}\:\mathrm{holds}\::\:\:\:\: \\ $$$$\:\:\:\underset{\lambda\in\mathbb{Z}\left[{i}\right]} {\sum}\:\left(\frac{\mathrm{1}}{\left(\mathrm{1}\:+\:\mathrm{3}\lambda\right)^{\mathrm{3}} }\right)\:=\:\frac{\pi^{\mathrm{9}/\mathrm{2}} \:\sqrt{\mathrm{1}\:+\:\sqrt{\mathrm{3}\:}}}{\mathrm{2}^{\mathrm{5}/\mathrm{4}} \:\:\mathrm{3}^{\mathrm{27}/\mathrm{8}} \:\Gamma\left(\frac{\mathrm{3}}{\mathrm{4}}\right)^{\mathrm{6}} \:}\:\:\:\:\: \\ $$$$\:\:\:\:\mathrm{Where}\:\mathbb{Z}\left[{i}\right]\:=\:\left\{{a}\:+\:{bi}\::\:{a},{b}\:\in\:\mathbb{Z}\right\}\:\mathrm{denotes}\:\mathrm{gaussian}\:\mathrm{integers}\:!\:\:\:\:\:\:\:\:\: \\ $$$$\: \\ $$

Question Number 222924 Answers: 2 Comments: 0

Question Number 222783 Answers: 1 Comments: 0

$$\:\underbrace{ } \\ $$

Question Number 222781 Answers: 1 Comments: 0

⪸

$$\:\cancel{\underline{\underbrace{\succapprox}}} \\ $$

Question Number 222744 Answers: 0 Comments: 0

Question Number 222733 Answers: 0 Comments: 0

Question Number 222622 Answers: 0 Comments: 0

Question Number 222592 Answers: 0 Comments: 0

Σ_(n = 1) ^∞ (1/(cosh^4 [n ln((√2) + 1)]))

$$\underset{\mathrm{n}\:=\:\mathrm{1}} {\overset{\infty} {\sum}}\:\frac{\mathrm{1}}{\mathrm{cosh}^{\mathrm{4}} \left[\mathrm{n}\:\mathrm{ln}\left(\sqrt{\mathrm{2}}\:\:+\:\:\mathrm{1}\right)\right]} \\ $$

Question Number 222373 Answers: 2 Comments: 0

An 80 kg man floats with 4% of his volume above the surface in fresh water.what is his volume? what volume would be above the surface in Sea water?How great is the upthrust on him in air due to the air he displaces? density of sea water =1030kgm^-3, density of fresh water=1000kgm^-3?

Question Number 222276 Answers: 0 Comments: 0

Prove; Σ_(k = 1) ^∞ (k/(sinh(πk))) = ((Γ((1/4))^4 − 8π^2 )/(32π^3 ))

$$ \\ $$$$\:\mathrm{Prove};\:\underset{{k}\:=\:\mathrm{1}} {\overset{\infty} {\sum}}\:\frac{{k}}{\mathrm{sinh}\left(\pi{k}\right)}\:=\:\frac{\Gamma\left(\frac{\mathrm{1}}{\mathrm{4}}\right)^{\mathrm{4}} −\:\mathrm{8}\pi^{\mathrm{2}} }{\mathrm{32}\pi^{\mathrm{3}} }\:\:\:\:\:\:\:\:\:\:\:\:\:\: \\ $$$$ \\ $$

Pg 1 Pg 2 Pg 3 Pg 4 Pg 5 Pg 6 Pg 7 Pg 8 Pg 9 Pg 10

Contact: info@tinkutara.com