Question and Answers Forum

AllQuestion and Answers: Page 1190

Question Number 89714 Answers: 1 Comments: 1

calculate ∫_0 ^∞ (dx/((1+(√(2+x^2 )))^2 ))

$${calculate}\:\int_{\mathrm{0}} ^{\infty} \:\:\:\frac{{dx}}{\left(\mathrm{1}+\sqrt{\mathrm{2}+{x}^{\mathrm{2}} }\right)^{\mathrm{2}} } \\ $$

Question Number 89712 Answers: 0 Comments: 1

Question Number 89702 Answers: 1 Comments: 0

3^(2t+1) +3^(t+2) =((10)/3)

$$\mathrm{3}^{\mathrm{2}{t}+\mathrm{1}} +\mathrm{3}^{{t}+\mathrm{2}} =\frac{\mathrm{10}}{\mathrm{3}} \\ $$

Question Number 89687 Answers: 1 Comments: 3

x^3 +x−16=0

$${x}^{\mathrm{3}} +{x}−\mathrm{16}=\mathrm{0} \\ $$

Question Number 89698 Answers: 1 Comments: 4

hi everyone what is the definition of the tangent straight line to the curve without relying to the derivitve because the derivative is the slope and thanx for all

$${hi}\:{everyone} \\ $$$${what}\:{is}\:{the}\:{definition}\:{of}\:{the}\:{tangent} \\ $$$${straight}\:{line}\:{to}\:{the}\:{curve}\:{without}\:{relying} \\ $$$${to}\:\:{the}\:{derivitve}\: \\ $$$${because}\:{the}\:{derivative}\:{is}\:{the}\:{slope} \\ $$$${and}\:{thanx}\:{for}\:{all} \\ $$

Question Number 89668 Answers: 1 Comments: 1

what is the first three smallest positive integer that leaves a reminder of 1. when divided by 3 and 5 qnd 7?

$${what}\:{is}\:{the}\:{first}\:{three}\:{smallest}\:{positive}\: \\ $$$${integer}\:{that}\:{leaves}\:{a}\:{reminder}\:{of}\:\mathrm{1}.\:{when} \\ $$$${divided}\:{by}\:\mathrm{3}\:{and}\:\mathrm{5}\:{qnd}\:\mathrm{7}? \\ $$

Question Number 89666 Answers: 0 Comments: 0

tentukan solusi umum dari persamaan diferensial parsial berikut ini 7u_x +3u_y +u=x+y

$${tentukan}\:{solusi}\:{umum}\:{dari}\:{persamaan}\:{diferensial}\:{parsial}\:{berikut}\:{ini}\:\mathrm{7}{u}_{{x}} +\mathrm{3}{u}_{{y}} +{u}={x}+{y} \\ $$

Question Number 89662 Answers: 1 Comments: 0

Given that sin A=(1/2) and sin C=((√3)/2) without u using calculator solve a) tan (A+C) b) cos(A−C)

$${Given}\:{that}\:\mathrm{sin}\:{A}=\frac{\mathrm{1}}{\mathrm{2}}\:{and}\:\mathrm{sin}\:{C}=\frac{\sqrt{\mathrm{3}}}{\mathrm{2}}\:{without}\:{u} \\ $$$${using}\:{calculator}\:{solve} \\ $$$$\left.{a}\right)\:\mathrm{tan}\:\left({A}+{C}\right) \\ $$$$\left.{b}\right)\:{cos}\left({A}−{C}\right) \\ $$

Question Number 89661 Answers: 0 Comments: 3

The Area of the triangle is 9x^2 −12x+4. compute its perimeter?

$${The}\:{Area}\:{of}\:{the}\:{triangle}\:{is}\:\mathrm{9}{x}^{\mathrm{2}} \:−\mathrm{12}{x}+\mathrm{4}. \\ $$$${compute}\:{its}\:{perimeter}? \\ $$

Question Number 89660 Answers: 1 Comments: 3

When rolling 2 dice what is the probability your not getting 2?

$${When}\:{rolling}\:\mathrm{2}\:{dice}\:{what}\:{is}\:{the}\:{probability} \\ $$$${your}\:{not}\:{getting}\:\mathrm{2}? \\ $$

Question Number 89658 Answers: 0 Comments: 4

Question Number 89653 Answers: 1 Comments: 4

Question Number 89652 Answers: 0 Comments: 0

If (y(x−y))^2 = x and ∫ (dx/((x−3y))) = ((m/n)) log [ (x−y)^2 −1] then m+2n = A.1 B. 3 C. 5 D.7

$$\mathrm{If}\:\left({y}\left({x}−{y}\right)\right)^{\mathrm{2}} \:=\:{x}\:{and}\: \\ $$$$\int\:\frac{{dx}}{\left({x}−\mathrm{3}{y}\right)}\:=\:\left(\frac{{m}}{{n}}\right)\:\mathrm{log}\:\left[\:\left({x}−{y}\right)^{\mathrm{2}} −\mathrm{1}\right] \\ $$$${then}\:{m}+\mathrm{2}{n}\:=\: \\ $$$${A}.\mathrm{1}\:\:\:\:\:{B}.\:\mathrm{3}\:\:\:\:\:\:\:\:{C}.\:\mathrm{5}\:\:\:\:\:\:\:\:\:{D}.\mathrm{7} \\ $$

Question Number 89649 Answers: 0 Comments: 3

If (((a−b b+c)),((3d+c 2c−d)) ) = (((8 1)),((7 6)) ) then a+b+c+d = A. −((53)/7) B. −((18)/7) C. ((43)/7) D. ((38)/7) E. ((53)/7)

$$\mathrm{If}\:\begin{pmatrix}{\mathrm{a}−\mathrm{b}\:\:\:\:\:\:\mathrm{b}+\mathrm{c}}\\{\mathrm{3d}+\mathrm{c}\:\:\:\:\:\mathrm{2c}−\mathrm{d}}\end{pmatrix}\:=\:\begin{pmatrix}{\mathrm{8}\:\:\:\:\mathrm{1}}\\{\mathrm{7}\:\:\:\:\mathrm{6}}\end{pmatrix} \\ $$$$\mathrm{then}\:\mathrm{a}+\mathrm{b}+\mathrm{c}+\mathrm{d}\:=\: \\ $$$$\mathrm{A}.\:−\frac{\mathrm{53}}{\mathrm{7}}\:\:\:\:\:\:\:\mathrm{B}.\:−\frac{\mathrm{18}}{\mathrm{7}}\:\:\:\:\:\:\:\mathrm{C}.\:\frac{\mathrm{43}}{\mathrm{7}} \\ $$$$\mathrm{D}.\:\frac{\mathrm{38}}{\mathrm{7}}\:\:\:\:\mathrm{E}.\:\frac{\mathrm{53}}{\mathrm{7}} \\ $$

Question Number 89647 Answers: 1 Comments: 0

Question Number 89867 Answers: 2 Comments: 1

find the integration ∫ln⌊x⌋ dx ; x>2

$${find}\:{the}\:{integration} \\ $$$$\int{ln}\lfloor{x}\rfloor\:{dx}\:\:\:\:\:\:;\:{x}>\mathrm{2} \\ $$

Question Number 89636 Answers: 3 Comments: 2

∫ ((cos x+sin x)/(sin 2x)) dx

$$\int\:\frac{\mathrm{cos}\:\mathrm{x}+\mathrm{sin}\:\mathrm{x}}{\mathrm{sin}\:\mathrm{2x}}\:\mathrm{dx}\: \\ $$

Question Number 89632 Answers: 1 Comments: 0

y(√(x^2 −1)) dx + x(√(y^2 −1)) dy =0

$$\mathrm{y}\sqrt{\mathrm{x}^{\mathrm{2}} −\mathrm{1}}\:\mathrm{dx}\:+\:\mathrm{x}\sqrt{\mathrm{y}^{\mathrm{2}} −\mathrm{1}}\:\mathrm{dy}\:=\mathrm{0} \\ $$

Question Number 89626 Answers: 0 Comments: 1

Question Number 89624 Answers: 1 Comments: 3

Q1)find tow power series solutions of the given D.E about x=0 y^(′′) −2xy^′ +y=0 Q2)use the power series method to solve the given intial value problem y^(′′) −2xy^′ +8y=0 y(0)=3y^′ (0)=0

$$\left.{Q}\mathrm{1}\right){find}\:{tow}\:{power}\:{series}\:{solutions}\:{of}\:{the}\: \\ $$$${given}\:{D}.{E}\:{about}\:{x}=\mathrm{0} \\ $$$${y}^{''} −\mathrm{2}{xy}^{'} +{y}=\mathrm{0} \\ $$$$ \\ $$$$\left.{Q}\mathrm{2}\right){use}\:{the}\:{power}\:{series}\:{method}\:\:{to}\:{solve}\:{the} \\ $$$${given}\:{intial}\:{value}\:{problem} \\ $$$${y}^{''} −\mathrm{2}{xy}^{'} +\mathrm{8}{y}=\mathrm{0} \\ $$$${y}\left(\mathrm{0}\right)=\mathrm{3}{y}^{'} \left(\mathrm{0}\right)=\mathrm{0} \\ $$

Question Number 89620 Answers: 0 Comments: 0

x=^(c−1) (√((ay−bz)/(cdy))) What will happen to x when a increses? Explain.

$${x}=^{{c}−\mathrm{1}} \sqrt{\frac{{ay}−{bz}}{{cdy}}} \\ $$$$ \\ $$$$\mathrm{What}\:\mathrm{will}\:\mathrm{happen}\:\mathrm{to}\:\boldsymbol{{x}}\:\mathrm{when}\:\boldsymbol{{a}}\:\mathrm{increses}? \\ $$$$\mathrm{Explain}. \\ $$

Question Number 89618 Answers: 1 Comments: 2

Question Number 89614 Answers: 1 Comments: 0

how to write integral sign with limits

$$\mathrm{how}\:\mathrm{to}\:\mathrm{write}\:\mathrm{integral}\:\mathrm{sign}\:\mathrm{with}\:\mathrm{limits} \\ $$

Question Number 89600 Answers: 0 Comments: 2

(dy/dx) = ((y+(√(x^2 −y^2 )))/x)

$$\frac{\mathrm{dy}}{\mathrm{dx}}\:=\:\frac{\mathrm{y}+\sqrt{\mathrm{x}^{\mathrm{2}} −\mathrm{y}^{\mathrm{2}} }}{\mathrm{x}}\: \\ $$

Question Number 89599 Answers: 0 Comments: 6

Question Number 89576 Answers: 0 Comments: 3

is lim_(x→a) ⌊f(x)⌋=⌊lim_(x→a ) f(x)⌋

$${is}\:\:\underset{{x}\rightarrow{a}} {{lim}}\lfloor{f}\left({x}\right)\rfloor=\lfloor\underset{{x}\rightarrow{a}\:} {{lim}}\:{f}\left({x}\right)\rfloor\: \\ $$

Pg 1185 Pg 1186 Pg 1187 Pg 1188 Pg 1189 Pg 1190 Pg 1191 Pg 1192 Pg 1193 Pg 1194

Contact: info@tinkutara.com