Question and Answers Forum

AllQuestion and Answers: Page 1544

Question Number 56580 Answers: 1 Comments: 0

(D^3 −2D^2 +9D−18)y=6cos3x

$$\left(\mathrm{D}^{\mathrm{3}} −\mathrm{2D}^{\mathrm{2}} +\mathrm{9D}−\mathrm{18}\right)\mathrm{y}=\mathrm{6cos3x} \\ $$

Question Number 56578 Answers: 0 Comments: 3

Question Number 56629 Answers: 0 Comments: 2

1) calculate I =∫_(−∞) ^(+∞) (dx/(x^2 −i)) and J =∫_(−∞) ^(+∞) (dx/(x^2 −i)) 2) find the value of ∫_(−∞) ^(+∞) (dx/(x^4 +1))

$$\left.\mathrm{1}\right)\:{calculate}\:{I}\:=\int_{−\infty} ^{+\infty} \:\:\frac{{dx}}{{x}^{\mathrm{2}} −{i}}\:\:\:{and}\:{J}\:=\int_{−\infty} ^{+\infty} \:\:\frac{{dx}}{{x}^{\mathrm{2}} −{i}} \\ $$$$\left.\mathrm{2}\right)\:{find}\:{the}\:{value}\:{of}\:\int_{−\infty} ^{+\infty} \:\:\frac{{dx}}{{x}^{\mathrm{4}} \:+\mathrm{1}} \\ $$

Question Number 56575 Answers: 1 Comments: 2

Question Number 56569 Answers: 0 Comments: 0

Question Number 56565 Answers: 0 Comments: 2

It is my kind request to those who post questions ...pls go through the details of answer...and give feed back...pls activate yourselves to pay your attention in the details of answer...do not become self satisfied by getting your desired results.. unfurl your mind and act in such away that we get a tip of iceberg of your satisfation.Tanmay

$${It}\:{is}\:{my}\:{kind}\:{request}\:{to}\:{those}\:{who}\:{post}\:{questions} \\ $$$$...{pls}\:{go}\:{through}\:{the}\:{details}\:{of}\:{answer}...{and}\:{give} \\ $$$${feed}\:{back}...{pls}\:{activate}\:{yourselves}\:{to}\:{pay}\:{your} \\ $$$${attention}\:{in}\:{the}\:{details}\:{of}\:{answer}...{do}\:{not}\:{become} \\ $$$${self}\:{satisfied}\:{by}\:{getting}\:{your}\:{desired}\:{results}.. \\ $$$${unfurl}\:{your}\:{mind}\:{and}\:{act}\:{in}\:{such}\:{away}\:{that} \\ $$$${we}\:{get}\:{a}\:{tip}\:{of}\:{iceberg}\:{of}\:{your}\:{satisfation}.{Tanmay} \\ $$

Question Number 56555 Answers: 0 Comments: 7

Question Number 56553 Answers: 1 Comments: 0

solve for m m^8 =3125

$$\mathrm{solve}\:\mathrm{for}\:{m} \\ $$$${m}^{\mathrm{8}} =\mathrm{3125} \\ $$

Question Number 56525 Answers: 4 Comments: 2

Question Number 56524 Answers: 0 Comments: 2

Question Number 56523 Answers: 0 Comments: 2

∫x(√(3x^3 +2)) dx=?

$$\int{x}\sqrt{\mathrm{3}{x}^{\mathrm{3}} +\mathrm{2}}\:{dx}=? \\ $$

Question Number 56534 Answers: 1 Comments: 1

Question Number 56510 Answers: 1 Comments: 2

Question Number 56498 Answers: 1 Comments: 1

It is known that 5π<α<((13π)/2). cosα=−(1/4) calculate sin2α

$${It}\:{is}\:{known}\:{that}\:\mathrm{5}\pi<\alpha<\frac{\mathrm{13}\pi}{\mathrm{2}}.\:\:{cos}\alpha=−\frac{\mathrm{1}}{\mathrm{4}} \\ $$$${calculate}\:\:{sin}\mathrm{2}\alpha \\ $$$$ \\ $$

Question Number 56540 Answers: 5 Comments: 1

Question Number 56481 Answers: 2 Comments: 1

Question Number 56479 Answers: 1 Comments: 0

Please is there any way to reduce a polynomial of 4th degree and solve. Or probably a polynomial of nth power to smaller power.

$$\mathrm{Please}\:\mathrm{is}\:\mathrm{there}\:\mathrm{any}\:\mathrm{way}\:\mathrm{to}\:\mathrm{reduce}\:\mathrm{a}\:\mathrm{polynomial}\:\mathrm{of}\:\:\mathrm{4th}\:\mathrm{degree} \\ $$$$\mathrm{and}\:\mathrm{solve}.\:\:\mathrm{Or}\:\mathrm{probably}\:\mathrm{a}\:\mathrm{polynomial}\:\mathrm{of}\:\:\:\mathrm{nth}\:\mathrm{power}\:\mathrm{to}\:\mathrm{smaller} \\ $$$$\mathrm{power}.\: \\ $$

Question Number 56477 Answers: 1 Comments: 0

let x and y be two real numbers if x+y≤10 prove ln(x+1)+ln(y+1)≤2ln6

$$\mathrm{let}\:{x}\:\mathrm{and}\:{y}\:\mathrm{be}\:\mathrm{two}\:\mathrm{real}\:\mathrm{numbers} \\ $$$$\mathrm{if}\:{x}+{y}\leqslant\mathrm{10}\:\mathrm{prove} \\ $$$$\mathrm{ln}\left({x}+\mathrm{1}\right)+\mathrm{ln}\left({y}+\mathrm{1}\right)\leqslant\mathrm{2ln6} \\ $$

Question Number 56471 Answers: 1 Comments: 0

Question Number 56461 Answers: 1 Comments: 0

Question Number 56460 Answers: 1 Comments: 0

Question Number 56462 Answers: 0 Comments: 1

Question Number 56467 Answers: 1 Comments: 0

x^3 +ax^2 +bx+c=0 Transform to t^3 +k=0 .

$${x}^{\mathrm{3}} +{ax}^{\mathrm{2}} +{bx}+{c}=\mathrm{0} \\ $$$${Transform}\:{to}\: \\ $$$$\:\:\:{t}^{\mathrm{3}} +{k}=\mathrm{0}\:. \\ $$

Question Number 56453 Answers: 1 Comments: 2

Question Number 57028 Answers: 0 Comments: 3

Question Number 56426 Answers: 2 Comments: 0

Let consider the following sequence : 1 , 3 , (√(17)) , 5 , (√(33)) , (√(41)) , ... What may be the explicit formula that can gives this sequence of number ? Thank you

$${Let}\:{consider}\:{the}\:{following}\:{sequence}\:: \\ $$$$ \\ $$$$\mathrm{1}\:,\:\mathrm{3}\:,\:\sqrt{\mathrm{17}}\:,\:\mathrm{5}\:,\:\sqrt{\mathrm{33}}\:,\:\sqrt{\mathrm{41}}\:,\:...\: \\ $$$$ \\ $$$${What}\:{may}\:{be}\:{the}\:{explicit}\:{formula}\:{that} \\ $$$${can}\:{gives}\:{this}\:{sequence}\:{of}\:{number}\:? \\ $$$$ \\ $$$${Thank}\:{you} \\ $$

Pg 1539 Pg 1540 Pg 1541 Pg 1542 Pg 1543 Pg 1544 Pg 1545 Pg 1546 Pg 1547 Pg 1548

Contact: info@tinkutara.com