Question and Answers Forum

All Questions Topic List

AllQuestion and Answers: Page 290

Question Number 191723 Answers: 1 Comments: 0

∫_0 ^(2π) 3sintcost dt

$$\int_{\mathrm{0}} ^{\mathrm{2}\pi} \mathrm{3}{sintcost}\:{dt} \\ $$

Question Number 191753 Answers: 1 Comments: 0

Question Number 191717 Answers: 0 Comments: 0

Question Number 191716 Answers: 0 Comments: 0

Question Number 191715 Answers: 1 Comments: 0

Question Number 191714 Answers: 1 Comments: 0

Question Number 191713 Answers: 0 Comments: 0

Question Number 191710 Answers: 0 Comments: 1

What is the remainder f 149! when divided by 139?

$$\mathrm{What}\:\mathrm{is}\:\mathrm{the}\:\mathrm{remainder}\:\mathrm{f}\:\mathrm{149}!\:\mathrm{when}\:\mathrm{divided} \\ $$$$\mathrm{by}\:\mathrm{139}? \\ $$

Question Number 191706 Answers: 2 Comments: 0

Question Number 191688 Answers: 1 Comments: 9

Divide a 113mm line into ratio 1:2:4

$$\mathrm{Divide}\:\mathrm{a}\:\mathrm{113mm}\:\mathrm{line}\:\mathrm{into}\:\mathrm{ratio} \\ $$$$\mathrm{1}:\mathrm{2}:\mathrm{4} \\ $$

Question Number 191680 Answers: 1 Comments: 0

Find the remainder of 67! when divided by 7!

$$\mathrm{Find}\:\mathrm{the}\:\mathrm{remainder}\:\mathrm{of}\:\mathrm{67}!\:\mathrm{when}\:\mathrm{divided} \\ $$$$\mathrm{by}\:\mathrm{7}! \\ $$

Question Number 191676 Answers: 2 Comments: 2

Question Number 191675 Answers: 2 Comments: 2

Solve for x : (x − (1/x))^(1/2) + (1 − (1/x))^(1/2) = x

$$\mathrm{Solve}\:\mathrm{for}\:{x}\:: \\ $$$$\left({x}\:−\:\frac{\mathrm{1}}{{x}}\right)^{\frac{\mathrm{1}}{\mathrm{2}}} \:+\:\left(\mathrm{1}\:−\:\frac{\mathrm{1}}{{x}}\right)^{\frac{\mathrm{1}}{\mathrm{2}}} \:=\:{x} \\ $$

Question Number 191668 Answers: 0 Comments: 0

∫ ((√x)/( (√((1−x^2 )^3 ))))dx = ?

$$\:\:\:\:\int\:\:\frac{\sqrt{\boldsymbol{\mathrm{x}}}}{\:\sqrt{\left(\mathrm{1}−\boldsymbol{\mathrm{x}}^{\mathrm{2}} \right)^{\mathrm{3}} }}\boldsymbol{\mathrm{dx}}\:\:\:\:=\:\:? \\ $$

Question Number 191663 Answers: 4 Comments: 0

2^a +4^b +8^c =328 find a,b and c when(a,b,c)is natual number

$$\mathrm{2}^{{a}} +\mathrm{4}^{{b}} +\mathrm{8}^{{c}} =\mathrm{328} \\ $$$${find}\:{a},{b}\:{and}\:{c} \\ $$$${when}\left({a},{b},{c}\right){is}\:{natual}\:{number} \\ $$

Question Number 191652 Answers: 1 Comments: 1

Question Number 191642 Answers: 0 Comments: 1

Comparer [OHDF] avec [ABHEF] (avec preuve) Sachant que: OH∣∣DF HE=EF OB=4OA CH=2BC et BC<OB.

$$\mathrm{Comparer}\:\left[\mathrm{OHDF}\right]\:\:\mathrm{avec}\:\left[\mathrm{ABHEF}\right] \\ $$$$\left({avec}\:{preuve}\right) \\ $$$$\:\:{Sa}\mathrm{c}{h}\mathrm{a}{nt}\:{que}: \\ $$$$\mathrm{OH}\mid\mid\mathrm{DF}\:\:\:\mathrm{HE}=\mathrm{EF}\:\:\:\mathrm{OB}=\mathrm{4OA} \\ $$$$\:\:\:\mathrm{CH}=\mathrm{2BC}\:\mathrm{et}\:\mathrm{BC}<\mathrm{OB}.\:\:\: \\ $$$$ \\ $$

Question Number 191640 Answers: 0 Comments: 1

x^3 −1 = (x−1) (x^2 +x+1) ⇒ x = 1 and x = ((−1±(√3) i)/2) ⇒ w = −(1/2) + (((√3)i )/2) and w^2 = −(1/2) − ((√3)/2) i ⇒ w^3 = 1 similarly x^3 + 1= 0 ⇒ x = −1 and x =−w^2 and x = −w

$${x}^{\mathrm{3}} −\mathrm{1}\:=\:\left({x}−\mathrm{1}\right)\:\left({x}^{\mathrm{2}} +{x}+\mathrm{1}\right) \\ $$$$\Rightarrow\:{x}\:=\:\mathrm{1}\:{and}\:{x}\:=\:\frac{−\mathrm{1}\pm\sqrt{\mathrm{3}}\:{i}}{\mathrm{2}} \\ $$$$\Rightarrow\:{w}\:=\:−\frac{\mathrm{1}}{\mathrm{2}}\:+\:\frac{\sqrt{\mathrm{3}}{i}\:}{\mathrm{2}}\:{and}\:{w}^{\mathrm{2}} \:=\:−\frac{\mathrm{1}}{\mathrm{2}}\:−\:\frac{\sqrt{\mathrm{3}}}{\mathrm{2}}\:{i} \\ $$$$\Rightarrow\:{w}^{\mathrm{3}} \:=\:\mathrm{1} \\ $$$${similarly}\:{x}^{\mathrm{3}} \:+\:\mathrm{1}=\:\mathrm{0} \\ $$$$\Rightarrow\:{x}\:=\:−\mathrm{1}\:{and}\:{x}\:=−{w}^{\mathrm{2}} \:{and}\:{x}\:=\:−{w} \\ $$

Question Number 191639 Answers: 1 Comments: 1

Une feuille de papier format A4 est plie n fois simultanement en longueur et largeur (total plie=2n) −Quel son les nouvelles dimensions de cette feuille la feuille a la fin . −quel seront ses dimensions apres 6 pliages −Quel seront les dimensions pour une feuille care de 30 cm plie 6 fois succrssivement en long et large

$$\mathrm{Une}\:\mathrm{feuille}\:\mathrm{de}\:\mathrm{papier}\:\mathrm{format}\:\boldsymbol{\mathrm{A}}\mathrm{4}\:\mathrm{est}\:\mathrm{plie} \\ $$$$\:\boldsymbol{\mathrm{n}}\:\mathrm{fois}\:\mathrm{simultanement}\:\mathrm{en}\:\mathrm{longueur}\:\mathrm{et} \\ $$$$\mathrm{largeur}\:\left(\mathrm{total}\:\mathrm{plie}=\mathrm{2n}\right) \\ $$$$−\mathrm{Quel}\:\mathrm{son}\:\mathrm{les}\:\mathrm{nouvelles}\:\mathrm{dimensions}\:\mathrm{de}\:\mathrm{cette}\:\mathrm{feuille} \\ $$$$\:\:\:\mathrm{la}\:\mathrm{feuille}\:\mathrm{a}\:\mathrm{la}\:\mathrm{fin}\:. \\ $$$$−\mathrm{quel}\:\mathrm{seront}\:\mathrm{ses}\:\mathrm{dimensions}\:\:\mathrm{apres}\: \\ $$$$\:\:\:\:\mathrm{6}\:\boldsymbol{\mathrm{pliages}} \\ $$$$−\mathrm{Quel}\:\mathrm{seront}\:\:\mathrm{les}\:\mathrm{dimensions}\:\mathrm{pour}\:\mathrm{une}\:\mathrm{feuille}\:\boldsymbol{\mathrm{care}}\:\mathrm{de}\:\mathrm{30}\:\boldsymbol{\mathrm{cm}}\: \\ $$$$\:\:\:\mathrm{plie}\:\mathrm{6}\:\boldsymbol{\mathrm{fois}}\:\:\mathrm{succrssivement}\:\mathrm{en}\:\mathrm{long}\:\:\mathrm{et}\:\mathrm{large} \\ $$$$ \\ $$

Question Number 191637 Answers: 0 Comments: 0

Question Number 191633 Answers: 0 Comments: 0

Question Number 191632 Answers: 0 Comments: 1

∫_0 ^∞ (√(tan θ)) dθ

$$\int_{\mathrm{0}} ^{\infty} \sqrt{\mathrm{tan}\:\theta}\:{d}\theta \\ $$

Question Number 191631 Answers: 1 Comments: 0

∫_0 ^∞ x^(1/2) e^(−x^2 ) dx

$$\int_{\mathrm{0}} ^{\infty} {x}^{\frac{\mathrm{1}}{\mathrm{2}}} {e}^{−{x}^{\mathrm{2}} } {dx} \\ $$

Question Number 191626 Answers: 3 Comments: 0

Question Number 191624 Answers: 1 Comments: 0

Question Number 191623 Answers: 2 Comments: 0

Pg 285 Pg 286 Pg 287 Pg 288 Pg 289 Pg 290 Pg 291 Pg 292 Pg 293 Pg 294

Contact: info@tinkutara.com