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Question Number 209576 Answers: 0 Comments: 0

select some 𝛆′s and find the corresponding N′s?of the series: Σ_(n=1) ^∞ (1/2^n ) klipto−quanta

$$\boldsymbol{\mathrm{select}}\:\boldsymbol{\mathrm{some}}\:\boldsymbol{\epsilon}'\boldsymbol{\mathrm{s}}\:\boldsymbol{\mathrm{and}}\:\boldsymbol{\mathrm{find}}\:\boldsymbol{\mathrm{the}}\:\boldsymbol{\mathrm{corresponding}} \\ $$$$\boldsymbol{\mathrm{N}}'\boldsymbol{\mathrm{s}}?\boldsymbol{\mathrm{of}}\:\boldsymbol{\mathrm{the}}\:\boldsymbol{\mathrm{series}}: \\ $$$$\underset{\boldsymbol{\mathrm{n}}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\mathrm{1}}{\mathrm{2}^{\boldsymbol{\mathrm{n}}} } \\ $$$$\boldsymbol{\mathrm{klipto}}−\boldsymbol{\mathrm{quanta}} \\ $$

Question Number 209567 Answers: 1 Comments: 0

*Bolts are produced in a company using two available methods. A random sample of 100 bolts each was drawn from bolts produced by the two methods 10 and 8 bolts respectively were found to be defective. Find the 95% confidence interval for the difference in the population defective for all the bolts produced in the company by the two methods* lets check this question

$$ \\ $$*Bolts are produced in a company using two available methods. A random sample of 100 bolts each was drawn from bolts produced by the two methods 10 and 8 bolts respectively were found to be defective. Find the 95% confidence interval for the difference in the population defective for all the bolts produced in the company by the two methods* lets check this question

Question Number 209560 Answers: 3 Comments: 0

In the triangle ABC ; cos(B−C)=(1/3) Show that : ((1−3cos(B+C))/(6sinBcosC))=tanC

$${In}\:{the}\:{triangle}\:{ABC}\:;\:{cos}\left({B}−{C}\right)=\frac{\mathrm{1}}{\mathrm{3}} \\ $$$${Show}\:{that}\::\:\:\frac{\mathrm{1}−\mathrm{3}{cos}\left({B}+{C}\right)}{\mathrm{6}{sinBcosC}}={tanC} \\ $$$$ \\ $$

Question Number 209557 Answers: 2 Comments: 0

Given ∫_2 ^4 (ax^n +1)dx=58 ∫_0 ^2 (ax^n +1)dx=10 find the value of a and n

$${Given}\: \\ $$$$\:\int_{\mathrm{2}} ^{\mathrm{4}} \left({ax}^{{n}} +\mathrm{1}\right){dx}=\mathrm{58}\:\:\:\:\:\int_{\mathrm{0}} ^{\mathrm{2}} \left({ax}^{{n}} +\mathrm{1}\right){dx}=\mathrm{10} \\ $$$${find}\:{the}\:{value}\:{of}\:\:{a}\:\:\:{and}\:\:{n} \\ $$

Question Number 209550 Answers: 2 Comments: 0

Question Number 209545 Answers: 1 Comments: 0

L(sing((dy/dx)))=? L() ≡ laplas transfer

$${L}\left({sing}\left(\frac{{dy}}{{dx}}\right)\right)=? \\ $$$${L}\left(\right)\:\:\equiv\:\:{laplas}\:{transfer} \\ $$

Question Number 209544 Answers: 1 Comments: 0

∫_0 ^4 (dx/(∣x−1∣+∣x−2∣+∣x−4∣))

$$\:\:\:\:\:\: \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\int_{\mathrm{0}} ^{\mathrm{4}} \frac{{dx}}{\mid{x}−\mathrm{1}\mid+\mid{x}−\mathrm{2}\mid+\mid{x}−\mathrm{4}\mid} \\ $$$$ \\ $$

Question Number 209543 Answers: 1 Comments: 2

∫(dx/(x^4 +4))

$$\:\: \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\int\frac{{dx}}{{x}^{\mathrm{4}} +\mathrm{4}} \\ $$$$ \\ $$

Question Number 209542 Answers: 2 Comments: 0

∫(dx/(x^(15) −x^(11) ))

$$\:\:\:\:\:\:\:\:\:\:\:\:\:\: \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\int\frac{{dx}}{{x}^{\mathrm{15}} −{x}^{\mathrm{11}} } \\ $$$$ \\ $$$$ \\ $$

Question Number 209540 Answers: 3 Comments: 0

Question Number 209539 Answers: 0 Comments: 0

Question Number 209531 Answers: 0 Comments: 1

(y^(′′) /y) = 4x^2 + 2

$$\frac{\mathrm{y}^{''} }{\mathrm{y}}\:\:=\:\:\mathrm{4x}^{\mathrm{2}} \:\:+\:\:\mathrm{2} \\ $$

Question Number 209529 Answers: 1 Comments: 1

Question Number 209521 Answers: 1 Comments: 0

find the integral ∫ (dx/(x^4 +a^4 )) by complex number ?

$${find}\:{the}\:{integral}\:\int\:\frac{{dx}}{{x}^{\mathrm{4}} +{a}^{\mathrm{4}} }\:{by}\:{complex}\:{number}\:?\: \\ $$

Question Number 209520 Answers: 1 Comments: 1

At what value of a does the system of equations have 4 solutions ? { x^2 −y^2 =0 {(x−a)^2 +y^2 =1

$$ \\ $$$$\:\:\:{At}\:{what}\:{value}\:{of}\:\:{a}\:{does}\:{the}\:{system} \\ $$$$\:\:\:{of}\:{equations}\:{have}\:\mathrm{4}\:{solutions}\:? \\ $$$$\:\:\:\left\{\:{x}^{\mathrm{2}} −{y}^{\mathrm{2}} =\mathrm{0}\right. \\ $$$$\:\:\:\left\{\left({x}−{a}\right)^{\mathrm{2}} +{y}^{\mathrm{2}} =\mathrm{1}\right. \\ $$$$ \\ $$

Question Number 209519 Answers: 0 Comments: 3

Is there any n∈N such that sin(n)∈Q ?

$$\mathrm{Is}\:\mathrm{there}\:\mathrm{any}\:{n}\in\mathbb{N}\:\mathrm{such}\:\mathrm{that} \\ $$$$\mathrm{sin}\left({n}\right)\in\mathbb{Q}\:? \\ $$

Question Number 209832 Answers: 0 Comments: 0

Question Number 209514 Answers: 1 Comments: 0

If Σ a_n is absolutely convergent, prove that Σ (a_n /n) is also absolutely convergent.

$$\mathrm{If}\:\Sigma\:{a}_{{n}} \:\mathrm{is}\:\mathrm{absolutely}\:\mathrm{convergent},\:\mathrm{prove}\:\mathrm{that} \\ $$$$\Sigma\:\frac{{a}_{{n}} }{{n}}\:\mathrm{is}\:\mathrm{also}\:\mathrm{absolutely}\:\mathrm{convergent}. \\ $$

Question Number 209510 Answers: 0 Comments: 0

three points are randomly selected on a circle to form a triangle. 1) find the probability that the center of the circle lies inside the triangle. 2) find the probability that the triangle is an acute triangle.

$${three}\:{points}\:{are}\:{randomly}\:{selected} \\ $$$${on}\:{a}\:{circle}\:{to}\:{form}\:{a}\:{triangle}.\: \\ $$$$\left.\mathrm{1}\right)\:{find}\:{the}\:{probability}\:{that}\:{the}\:{center} \\ $$$${of}\:{the}\:{circle}\:{lies}\:{inside}\:{the}\:{triangle}. \\ $$$$\left.\mathrm{2}\right)\:{find}\:{the}\:{probability}\:{that}\:{the}\: \\ $$$${triangle}\:{is}\:{an}\:{acute}\:{triangle}. \\ $$

Question Number 209506 Answers: 0 Comments: 2

Question Number 209495 Answers: 1 Comments: 1

Question Number 209484 Answers: 0 Comments: 0

∫_e^x ^e^2 ((1/(2+ln t)) )dt =?

$$\:\:\:\:\:\:\:\underset{\mathrm{e}^{\mathrm{x}} } {\overset{\mathrm{e}^{\mathrm{2}} } {\int}}\:\left(\frac{\mathrm{1}}{\mathrm{2}+\mathrm{ln}\:\mathrm{t}}\:\right)\mathrm{dt}\:=? \\ $$

Question Number 209474 Answers: 2 Comments: 1

Question Number 209465 Answers: 1 Comments: 0

Question Number 209460 Answers: 0 Comments: 0

Question Number 209458 Answers: 0 Comments: 3

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