Question and Answers Forum

All Questions   Topic List

AllQuestion and Answers: Page 267

Question Number 189446    Answers: 1   Comments: 0

x^2 =(2)^(1/5) +y y^2 =(2)^(1/5) +x x∙y=? x≠y

$${x}^{\mathrm{2}} =\sqrt[{\mathrm{5}}]{\mathrm{2}}+{y} \\ $$$${y}^{\mathrm{2}} =\sqrt[{\mathrm{5}}]{\mathrm{2}}+{x} \\ $$$${x}\centerdot{y}=?\:\:\:\:\:\:\:\:\:\:\:{x}\neq{y} \\ $$

Question Number 189445    Answers: 2   Comments: 0

Question Number 189429    Answers: 1   Comments: 1

Question Number 189428    Answers: 1   Comments: 0

Question Number 189426    Answers: 0   Comments: 0

Question Number 189421    Answers: 1   Comments: 1

Question Number 189418    Answers: 1   Comments: 0

Know: f(x)=3x+2+∫^1 _0 xf(x)dx Eluavte: ∫^2 _0 f(x)dx=¿

$${Know}:\:{f}\left({x}\right)=\mathrm{3}{x}+\mathrm{2}+\underset{\mathrm{0}} {\int}^{\mathrm{1}} {xf}\left({x}\right){dx} \\ $$$${Eluavte}:\:\underset{\mathrm{0}} {\int}^{\mathrm{2}} {f}\left({x}\right){dx}=¿ \\ $$

Question Number 189417    Answers: 1   Comments: 0

Question Number 189409    Answers: 2   Comments: 0

Question Number 189407    Answers: 0   Comments: 1

determiner l heure de depart par un auto qui part pour rejiindre la gare B juste a l′ arrivee du train partant a 7h,de la ville A vers la ville B a vitesse de 180km/h.?

$${determiner}\:{l}\:{heure}\:{de}\: \\ $$$${depart}\:{par}\:\:{un}\:{auto}\:{qui}\: \\ $$$${part}\:{pour}\:{rejiindre}\:{la} \\ $$$${gare}\:\:{B}\:{juste}\:{a}\:{l}'\:{arrivee} \\ $$$${du}\:{train}\:\:{partant}\:{a}\:\mathrm{7}{h},{de}\:{la}\:{ville}\:{A} \\ $$$${vers}\:{la}\:{ville}\:{B}\:{a}\:{vitesse}\:{de}\: \\ $$$$\mathrm{180}{km}/{h}.? \\ $$$$ \\ $$

Question Number 189394    Answers: 0   Comments: 0

Prove that: ln(n+1)<(1/( (√(1^2 +1))))+(1/( (√(2^2 +2))))+...+(1/( (√(n^2 +n))))(∀n∈N^∗ )

$${Prove}\:{that}: \\ $$$${ln}\left({n}+\mathrm{1}\right)<\frac{\mathrm{1}}{\:\sqrt{\mathrm{1}^{\mathrm{2}} +\mathrm{1}}}+\frac{\mathrm{1}}{\:\sqrt{\mathrm{2}^{\mathrm{2}} +\mathrm{2}}}+...+\frac{\mathrm{1}}{\:\sqrt{{n}^{\mathrm{2}} +{n}}}\left(\forall{n}\in{N}^{\ast} \right) \\ $$

Question Number 189390    Answers: 0   Comments: 0

Question Number 189384    Answers: 0   Comments: 0

Question Number 189382    Answers: 1   Comments: 0

Question Number 189383    Answers: 0   Comments: 0

Question Number 189375    Answers: 3   Comments: 0

show that : (1/(cscx + cot x)) = cscx − cot x

$$ \\ $$$$\:\:\:\:{show}\:{that}\:: \\ $$$$\:\:\:\:\frac{\mathrm{1}}{{cscx}\:+\:{cot}\:{x}}\:=\:{cscx}\:−\:{cot}\:{x} \\ $$$$ \\ $$$$ \\ $$

Question Number 189374    Answers: 1   Comments: 0

Δ={(x,y,z) ∈ R^3 :x^2 +y^2 ≤1 , x≥0, 0≤z≤1+y}. calculate: ∫∫∫_Δ dxdydz.

$$\Delta=\left\{\left({x},{y},{z}\right)\:\in\:\mathbb{R}^{\mathrm{3}} :{x}^{\mathrm{2}} +{y}^{\mathrm{2}} \leqslant\mathrm{1}\:,\:\:{x}\geqslant\mathrm{0},\:\mathrm{0}\leqslant{z}\leqslant\mathrm{1}+{y}\right\}. \\ $$$${calculate}: \\ $$$$\int\int\int_{\Delta} {dxdydz}. \\ $$

Question Number 189436    Answers: 1   Comments: 1

Question Number 189438    Answers: 1   Comments: 0

Question Number 189367    Answers: 1   Comments: 0

Question Number 189357    Answers: 2   Comments: 5

How many pairs of positive integers x, y exist such that HCF (x, y) + LCM(x, y) = 91?

$$ \\ $$How many pairs of positive integers x, y exist such that HCF (x, y) + LCM(x, y) = 91?

Question Number 189350    Answers: 1   Comments: 0

Question Number 189345    Answers: 1   Comments: 0

solve ∫t^(−6) (t^2 +3)^2 dt

$${solve} \\ $$$$\int{t}^{−\mathrm{6}} \left({t}^{\mathrm{2}} +\mathrm{3}\right)^{\mathrm{2}} {dt} \\ $$

Question Number 189339    Answers: 1   Comments: 0

Question Number 189363    Answers: 2   Comments: 0

Question Number 189335    Answers: 0   Comments: 0

determine the volume of the region that is between the xy plane and f(x,y)=2+cos(x^2 ) and is above the triangle with vertices (0,0),(6,0) and (6,2) using double integral

$$\boldsymbol{\mathrm{determine}}\:\boldsymbol{\mathrm{the}}\:\boldsymbol{\mathrm{volume}}\:\boldsymbol{\mathrm{of}}\:\boldsymbol{\mathrm{the}}\:\boldsymbol{\mathrm{region}}\: \\ $$$$\boldsymbol{\mathrm{that}}\:\boldsymbol{\mathrm{is}}\:\boldsymbol{\mathrm{between}}\:\boldsymbol{\mathrm{the}}\:\boldsymbol{\mathrm{xy}}\:\boldsymbol{\mathrm{plane}} \\ $$$$\:\boldsymbol{\mathrm{and}}\:\boldsymbol{\mathrm{f}}\left(\boldsymbol{\mathrm{x}},\boldsymbol{\mathrm{y}}\right)=\mathrm{2}+\boldsymbol{\mathrm{cos}}\left(\boldsymbol{\mathrm{x}}^{\mathrm{2}} \right)\:\boldsymbol{\mathrm{and}}\:\boldsymbol{\mathrm{is}}\:\boldsymbol{\mathrm{above}} \\ $$$$\:\boldsymbol{\mathrm{the}}\:\boldsymbol{\mathrm{triangle}}\:\boldsymbol{\mathrm{with}}\:\boldsymbol{\mathrm{vertices}}\:\left(\mathrm{0},\mathrm{0}\right),\left(\mathrm{6},\mathrm{0}\right)\: \\ $$$${a}\boldsymbol{{nd}}\:\left(\mathrm{6},\mathrm{2}\right)\:\boldsymbol{{using}}\:\boldsymbol{{double}}\:\boldsymbol{{integral}} \\ $$

  Pg 262      Pg 263      Pg 264      Pg 265      Pg 266      Pg 267      Pg 268      Pg 269      Pg 270      Pg 271   

Terms of Service

Privacy Policy

Contact: info@tinkutara.com