Question and Answers Forum

All Questions Topic List

AllQuestion and Answers: Page 1344

Question Number 77725 Answers: 2 Comments: 4

Question Number 77722 Answers: 1 Comments: 2

how to find n−term from S_n =n^2 +7n+2 ?

$${how}\:{to}\:{find}\: \\ $$$${n}−{term}\:{from} \\ $$$${S}_{{n}} ={n}^{\mathrm{2}} +\mathrm{7}{n}+\mathrm{2}\:? \\ $$

Question Number 77721 Answers: 0 Comments: 1

Question Number 77716 Answers: 1 Comments: 2

∫sin(x^4 ) dx

$$\int{sin}\left({x}^{\mathrm{4}} \right)\:{dx} \\ $$

Question Number 77681 Answers: 1 Comments: 9

Question Number 77676 Answers: 0 Comments: 0

Please how can we demonstrate that a vector is null... hello

$$\mathrm{Please}\:\mathrm{how}\:\mathrm{can}\:\mathrm{we}\:\mathrm{demonstrate} \\ $$$$\mathrm{that}\:\mathrm{a}\:\mathrm{vector}\:\mathrm{is}\:\mathrm{null}... \\ $$$$\mathrm{hello} \\ $$

Question Number 77675 Answers: 1 Comments: 0

∫_( 0) ^( ∞) 3(2x − (3/x))^2 dx

$$\int_{\:\mathrm{0}} ^{\:\:\infty} \:\mathrm{3}\left(\mathrm{2x}\:−\:\frac{\mathrm{3}}{\mathrm{x}}\right)^{\mathrm{2}} \:\mathrm{dx} \\ $$

Question Number 77687 Answers: 0 Comments: 8

given function f(x) =f(x+2) for ∀x∈R if ∫_0 ^2 f(x)dx=B , what value of ∫_3 ^7 f(x+8)dx = ?

$${given}\:{function} \\ $$$${f}\left({x}\right)\:={f}\left({x}+\mathrm{2}\right)\:{for}\:\forall{x}\in\mathbb{R} \\ $$$${if}\:\underset{\mathrm{0}} {\overset{\mathrm{2}} {\int}}{f}\left({x}\right){dx}={B}\:,\:{what}\:{value}\:{of} \\ $$$$\underset{\mathrm{3}} {\overset{\mathrm{7}} {\int}}\:{f}\left({x}+\mathrm{8}\right){dx}\:=\:? \\ $$

Question Number 77666 Answers: 0 Comments: 1

how Π=3.14 and what it mean?

$${how}\:\Pi=\mathrm{3}.\mathrm{14}\:{and}\:{what}\:{it}\:{mean}? \\ $$

Question Number 78045 Answers: 0 Comments: 2

old activity shown in my recent activity page, ssems like someone is hindering me from being able to see the recent activity page, i reinstalled the app, problem remains..

$${old}\:{activity}\:{shown}\:{in}\:{my} \\ $$$${recent}\:{activity}\:{page},\:{ssems} \\ $$$${like}\:{someone}\:{is}\:{hindering} \\ $$$${me}\:{from}\:{being}\:{able}\:{to}\:{see}\:{the} \\ $$$${recent}\:{activity}\:{page},\:{i}\:{reinstalled} \\ $$$${the}\:{app},\:{problem}\:{remains}.. \\ $$

Question Number 77655 Answers: 2 Comments: 1

Find the remainder when x + x^(25) + x^(49) + x^(81) is divided by x^3 − 1

$$\mathrm{Find}\:\mathrm{the}\:\mathrm{remainder}\:\mathrm{when}\:\:\:\:\mathrm{x}\:+\:\mathrm{x}^{\mathrm{25}} \:+\:\mathrm{x}^{\mathrm{49}} \:+\:\mathrm{x}^{\mathrm{81}} \:\:\mathrm{is}\:\mathrm{divided} \\ $$$$\mathrm{by}\:\:\mathrm{x}^{\mathrm{3}} \:−\:\mathrm{1} \\ $$

Question Number 77651 Answers: 1 Comments: 4

Question Number 77631 Answers: 1 Comments: 0

x^(log_3 (2)) =(√x)+1

$${x}^{{log}_{\mathrm{3}} \left(\mathrm{2}\right)} =\sqrt{{x}}+\mathrm{1} \\ $$

Question Number 77616 Answers: 0 Comments: 5

Question Number 77614 Answers: 1 Comments: 6

Question Number 77608 Answers: 0 Comments: 0

∫((( ln∣tan(((nx)/2)+(π/4))∣ )^2 )/(x^2 +1)) dx ;n>0

$$\int\frac{\left(\:{ln}\mid{tan}\left(\frac{{nx}}{\mathrm{2}}+\frac{\pi}{\mathrm{4}}\right)\mid\:\right)^{\mathrm{2}} }{{x}^{\mathrm{2}} +\mathrm{1}}\:{dx}\:\:;{n}>\mathrm{0}\: \\ $$

Question Number 77607 Answers: 0 Comments: 2

Two bell A and B rings in different time interval. Bell A rings in the interval of 8minutes while Bell B rings in the interval of 9minutes. If the two bell rings together for the first time when the time is 10:00am (a) At what time will the two bell ring together again. (b) State and explain two process you will use to help SHS student to solve the problem.

$$\mathrm{Two}\:\mathrm{bell}\:\mathrm{A}\:\mathrm{and}\:\mathrm{B}\:\mathrm{rings}\:\mathrm{in}\:\mathrm{different}\: \\ $$$$\mathrm{time}\:\mathrm{interval}.\:\mathrm{Bell}\:\mathrm{A}\:\mathrm{rings}\:\mathrm{in}\:\mathrm{the}\: \\ $$$$\mathrm{interval}\:\mathrm{of}\:\mathrm{8minutes}\:\mathrm{while}\:\mathrm{Bell}\:\mathrm{B}\:\mathrm{rings} \\ $$$$\mathrm{in}\:\mathrm{the}\:\mathrm{interval}\:\mathrm{of}\:\mathrm{9minutes}.\:\:\mathrm{If}\:\mathrm{the}\:\mathrm{two} \\ $$$$\mathrm{bell}\:\mathrm{rings}\:\mathrm{together}\:\mathrm{for}\:\mathrm{the}\:\mathrm{first}\:\mathrm{time}\: \\ $$$$\mathrm{when}\:\mathrm{the}\:\mathrm{time}\:\mathrm{is}\:\mathrm{10}:\mathrm{00am} \\ $$$$\left(\mathrm{a}\right)\:\mathrm{At}\:\mathrm{what}\:\mathrm{time}\:\mathrm{will}\:\mathrm{the}\:\mathrm{two}\:\mathrm{bell}\:\mathrm{ring} \\ $$$$\mathrm{together}\:\mathrm{again}. \\ $$$$\left(\mathrm{b}\right)\:\mathrm{State}\:\mathrm{and}\:\mathrm{explain}\:\mathrm{two}\:\mathrm{process}\:\mathrm{you}\: \\ $$$$\mathrm{will}\:\mathrm{use}\:\mathrm{to}\:\mathrm{help}\:\mathrm{SHS}\:\mathrm{student}\:\mathrm{to}\:\mathrm{solve}\: \\ $$$$\mathrm{the}\:\mathrm{problem}. \\ $$

Question Number 77605 Answers: 0 Comments: 0

how to solve : y′′+p(x)y′+q(x)y=r(x)

$$\mathrm{how}\:\mathrm{to}\:\mathrm{solve}\:: \\ $$$$\mathrm{y}''+\mathrm{p}\left(\mathrm{x}\right)\mathrm{y}'+\mathrm{q}\left(\mathrm{x}\right)\mathrm{y}=\mathrm{r}\left(\mathrm{x}\right) \\ $$

Question Number 77604 Answers: 2 Comments: 0

given (((a−b)(b−c)(c−a))/((a+b)(b+c)(c+a)))=−(1/(30)) what the value of (b/(a+b))+(c/(b+c))+(a/(c+a)) ?

$${given} \\ $$$$\frac{\left({a}−{b}\right)\left({b}−{c}\right)\left({c}−{a}\right)}{\left({a}+{b}\right)\left({b}+{c}\right)\left({c}+{a}\right)}=−\frac{\mathrm{1}}{\mathrm{30}} \\ $$$${what}\:{the}\:{value}\:{of}\: \\ $$$$\frac{{b}}{{a}+{b}}+\frac{{c}}{{b}+{c}}+\frac{{a}}{{c}+{a}}\:? \\ $$

Question Number 77603 Answers: 1 Comments: 1

∫((10x^2 −8x+1)/(x^4 −x^3 −x+1))dx

$$\int\frac{\mathrm{10}{x}^{\mathrm{2}} −\mathrm{8}{x}+\mathrm{1}}{{x}^{\mathrm{4}} −{x}^{\mathrm{3}} −{x}+\mathrm{1}}{dx} \\ $$$$ \\ $$

Question Number 77593 Answers: 0 Comments: 10