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AllQuestion and Answers: Page 218

Question Number 199732    Answers: 2   Comments: 0

Question Number 199731    Answers: 2   Comments: 0

Question Number 199730    Answers: 1   Comments: 0

Question Number 199729    Answers: 1   Comments: 0

Question Number 199728    Answers: 1   Comments: 0

Question Number 199723    Answers: 1   Comments: 0

Question Number 199721    Answers: 0   Comments: 0

Question Number 199719    Answers: 1   Comments: 0

Question Number 199718    Answers: 1   Comments: 0

{ ((cos x+cos y=(1/2))),((sin x+sin y=(1/4))),((sin 2x + sin 2y=−((27)/(20)))) :} sin (x+y) = ...

$$\:\begin{cases}{\mathrm{cos}\:\mathrm{x}+\mathrm{cos}\:\mathrm{y}=\frac{\mathrm{1}}{\mathrm{2}}}\\{\mathrm{sin}\:\mathrm{x}+\mathrm{sin}\:\mathrm{y}=\frac{\mathrm{1}}{\mathrm{4}}}\\{\mathrm{sin}\:\mathrm{2x}\:+\:\mathrm{sin}\:\mathrm{2y}=−\frac{\mathrm{27}}{\mathrm{20}}}\end{cases} \\ $$$$\:\:\:\mathrm{sin}\:\left(\mathrm{x}+\mathrm{y}\right)\:=\:... \\ $$

Question Number 199714    Answers: 0   Comments: 3

Statement Does the number of data have to be more than 100 in order to have a percentile value ?

$$\:{Statement}\: \\ $$$$\:{Does}\:{the}\:{number}\:{of}\:{data}\:{have} \\ $$$$\:{to}\:{be}\:{more}\:{than}\:\mathrm{100}\:{in}\:{order}\: \\ $$$$\:{to}\:{have}\:{a}\:{percentile}\:{value}\:? \\ $$

Question Number 199711    Answers: 3   Comments: 0

Question Number 199709    Answers: 1   Comments: 0

u_1 = 2 u_(n+1) = 3u_n + 2 u_n → n ¿

$${u}_{\mathrm{1}} \:=\:\mathrm{2}\: \\ $$$${u}_{{n}+\mathrm{1}} \:=\:\mathrm{3}{u}_{{n}} \:+\:\mathrm{2} \\ $$$${u}_{{n}} \:\rightarrow\:{n}\:¿ \\ $$

Question Number 199708    Answers: 0   Comments: 1

n^(20) +11^n =2023 (n∈N) n=¿

$${n}^{\mathrm{20}} +\mathrm{11}^{{n}} =\mathrm{2023}\:\left({n}\in{N}\right) \\ $$$${n}=¿ \\ $$

Question Number 199707    Answers: 1   Comments: 0

study the convergence Σ_(n≥o) ^ sin(π(√(4n^2 +2 ))

$${study}\:{the}\:{convergence} \\ $$$$\underset{{n}\geqslant{o}} {\overset{} {\sum}}{sin}\left(\pi\sqrt{\mathrm{4}{n}^{\mathrm{2}} +\mathrm{2}\:\:\:\:}\right. \\ $$

Question Number 199706    Answers: 0   Comments: 0

Question Number 199705    Answers: 0   Comments: 0

Calculate the first order energy correction for the one dimentional non-degenerate an harmonic oscillator whose harmiltonian id written as; H^ =−(h^2 /(2m)) (d^2 /dx^2 ) +(1/2)kx^2 +(1/5)Υx^3 +(1/(12))βx^4

$$\mathrm{Calculate}\:\mathrm{the}\:\mathrm{first}\:\mathrm{order}\:\mathrm{energy}\:\mathrm{correction}\: \\ $$$$\mathrm{for}\:\mathrm{the}\:\mathrm{one}\:\mathrm{dimentional}\:\mathrm{non}-\mathrm{degenerate} \\ $$$$\mathrm{an}\:\mathrm{harmonic}\:\mathrm{oscillator}\:\mathrm{whose}\:\mathrm{harmiltonian} \\ $$$$\mathrm{id}\:\mathrm{written}\:\mathrm{as}; \\ $$$$\hat {\mathrm{H}}=−\frac{\mathrm{h}^{\mathrm{2}} }{\mathrm{2}{m}}\:\frac{\mathrm{d}^{\mathrm{2}} }{\mathrm{dx}^{\mathrm{2}} }\:+\frac{\mathrm{1}}{\mathrm{2}}\mathrm{kx}^{\mathrm{2}} +\frac{\mathrm{1}}{\mathrm{5}}\Upsilon\mathrm{x}^{\mathrm{3}} \:+\frac{\mathrm{1}}{\mathrm{12}}\beta\mathrm{x}^{\mathrm{4}} \\ $$

Question Number 199694    Answers: 1   Comments: 0

Question Number 199688    Answers: 4   Comments: 1

Question Number 199686    Answers: 0   Comments: 0

Can you help me..??? pls.... Evaluate ∫∫_( S) F^ ∙dS^ Parametric Surface S^ (u,v)=(2+sin(u))cos(v)e_1 ^ +(2+sin(u))sin(v)e_2 ^ +(cos(v)+u)e_3 ^ Vector Field F^ (x,y)=xe_1 ^ +ye_2 ^ +ze_3 ^

$${Can}\:{you}\:{help}\:{me}..???\:{pls}.... \\ $$$$\: \\ $$$$\: \\ $$$$\mathrm{Evaluate}\:\int\int_{\:\boldsymbol{\mathcal{S}}} \:\hat {\boldsymbol{\mathrm{F}}}\centerdot\mathrm{d}\hat {\boldsymbol{\mathrm{S}}} \\ $$$$\mathrm{Parametric}\:\mathrm{Surface} \\ $$$$\hat {\boldsymbol{\mathrm{S}}}\left({u},{v}\right)=\left(\mathrm{2}+\mathrm{sin}\left({u}\right)\right)\mathrm{cos}\left({v}\right)\hat {\boldsymbol{\mathrm{e}}}_{\mathrm{1}} +\left(\mathrm{2}+\mathrm{sin}\left({u}\right)\right)\mathrm{sin}\left({v}\right)\hat {\boldsymbol{\mathrm{e}}}_{\mathrm{2}} +\left(\mathrm{cos}\left({v}\right)+{u}\right)\hat {\boldsymbol{\mathrm{e}}}_{\mathrm{3}} \\ $$$$\mathrm{Vector}\:\mathrm{Field}\:\hat {\boldsymbol{\mathrm{F}}}\left({x},{y}\right)={x}\hat {\boldsymbol{\mathrm{e}}}_{\mathrm{1}} +{y}\hat {\boldsymbol{\mathrm{e}}}_{\mathrm{2}} +{z}\hat {\boldsymbol{\mathrm{e}}}_{\mathrm{3}} \\ $$

Question Number 199672    Answers: 1   Comments: 0

Question Number 199671    Answers: 1   Comments: 0

Question Number 199669    Answers: 0   Comments: 0

Question Number 199666    Answers: 3   Comments: 0

Question Number 199662    Answers: 1   Comments: 0

A point moves on the curve of the function f(x)=(√(x^2 +5)) such that it′s x−coordinate increases at a rate of 3(√(10)) cm/s. Find the rate of change of it′s distance from the point (1,0) when x = 2

$$ \\ $$$$\mathrm{A}\:\mathrm{point}\:\mathrm{moves}\:\mathrm{on}\:\mathrm{the}\:\mathrm{curve}\:\mathrm{of} \\ $$$$\mathrm{the}\:\mathrm{function}\:\mathrm{f}\left(\mathrm{x}\right)=\sqrt{\mathrm{x}^{\mathrm{2}} +\mathrm{5}}\:\:\mathrm{such} \\ $$$$\mathrm{that}\:\mathrm{it}'\mathrm{s}\:\mathrm{x}−\mathrm{coordinate}\:\mathrm{increases}\: \\ $$$$\mathrm{at}\:\mathrm{a}\:\mathrm{rate}\:\mathrm{of}\:\mathrm{3}\sqrt{\mathrm{10}}\:\:\mathrm{cm}/\mathrm{s}.\:\mathrm{Find} \\ $$$$\mathrm{the}\:\mathrm{rate}\:\mathrm{of}\:\mathrm{change}\:\mathrm{of}\:\mathrm{it}'\mathrm{s} \\ $$$$\mathrm{distance}\:\mathrm{from}\:\mathrm{the}\:\mathrm{point}\:\left(\mathrm{1},\mathrm{0}\right) \\ $$$$\mathrm{when}\:\mathrm{x}\:=\:\mathrm{2} \\ $$

Question Number 199659    Answers: 1   Comments: 0

Question Number 199658    Answers: 1   Comments: 0

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