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Nairaland Mathematics Clinic - Education (214) - Nairaland 5u6eo

Nairaland Mathematics Clinic (521594 Views)

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agentofchange1(m): 9:34pm On Nov 29, 2015
LordPherule:
Generals, Please help me with these problems :

here..
Q1

ayokunlei(m): 10:56pm On Nov 29, 2015
agentofchange1:


its ok bro.. n bless u too.

BTW: check my solution on question 2

correct 'dy/dx ( ysinx) to. d/dx [ ysinx] ....(line 3 or 4)

twas a mistake ...' brain solves faster than hand. '

hope u get...
Thanks , I did get it. Final answer is y = sinx/2 + kcosecx.
ayokunlei(m): 10:58pm On Nov 29, 2015
ladokuntlad:

If am not here to solve the questions.
I can at least help u get a textbook that will help u grow in mathematical methods.
k.a Stroud is here at ur door step

https://nieeeslibrary.files./2013/01/advanced-engineering-mathematics-4th-ed-k-stroud.pdf

Thanks, I will it. I appreciate.
ayodijex(m): 1:49pm On Nov 30, 2015
hmm.....its jackpot's birthday. still confused about her personality tho...
On behalf the maths family, HAPPY BIRTHDAY JACKPOT cool

2 Likes

jackpot(f): 8:54pm On Nov 30, 2015
ayodijex:
hmm.....its jackpot's birthday. still confused about her personality tho...

On behalf the maths family,
HAPPY BIRTHDAY JACKPOT cool
Thanks Sir. I'm humbled.
LordPherule(m): 8:51am On Dec 01, 2015
agentofchange1:

here.. Q1
Thanks bos. I really appreciate for touching that.
parkparky(m): 10:49am On Dec 01, 2015
Please help me solve this indices. If 2^n =y. Find 2
ladokuntlad(m): 12:49pm On Dec 01, 2015
parkparky:
Please help me solve this indices. If 2^n =y. Find 2
ur question aint complete or clear
check again
Re: Nairaland Mathematics Clinic by Nobody: 1:05pm On Dec 01, 2015
Jackpot, happy belated . Cheers.
John93(m): 1:28pm On Dec 01, 2015
Someone pls help with this question..

Find the probabilitiy that n people(n<=365) selected at random will have n different birthdays?

1 Like

ladokuntlad(m): 2:12pm On Dec 01, 2015
John93:
Someone pls help with this question..

Find the probabilitiy that n people(n<=365) selected at random will have n different birthdays?
Poisson formular will do that for u
jerome263: 3:27pm On Dec 01, 2015
following
iameugene(m): 4:02pm On Dec 01, 2015
Mk
jerome263: 5:07pm On Dec 01, 2015
[quote autho
orobosa26(m): 9:51pm On Dec 01, 2015
pls can I get a good recommended mechanical vibration textbook
John93(m): 2:38pm On Dec 02, 2015
ladokuntlad:
Poisson formular will do that for u
Thanks but pls I'll appreciate if u can help me out practically....
seuntosyn: 3:54pm On Dec 02, 2015
iameugene:
Add 07019747550 to jamb whatsapp group
add me too 09030712744
cberryx: 12:50am On Dec 04, 2015
Please someone should help solve this:

SOLVE BY LAPLACE TRANSFORM, THE EQUATION

d^2 X/dt^2 +10(cos5t - 2sin5t) given that at t=0, X=1 and dx/dt = 2.

At the end, the final answer should be this: (2t + 1) cos5t + tsin5t. I have not been able to arrive at this answer. this question is in page 91 of Advanced Engineering maths fourth Edition.
agentofchange1(m): 7:31pm On Dec 04, 2015
check the question again , and edit Asap
cberryx:
Please someone should help solve this:

SOLVE BY LAPLACE TRANSFORM, THE EQUATION

d^2 X/dt^2 +10(cos5t - 2sin5t) given that at t=0, X=1 and dx/dt = 2.

At the end, the final answer should be this: (2t + 1) cos5t + tsin5t. I have not been able to arrive at this answer. this question is in page 91 of Advanced Engineering maths fourth Edition.
maryannah(f): 4:58am On Dec 05, 2015
John93:
Someone pls help with this question..

Find the probabilitiy that n people(n<=365) selected at random will have n different birthdays?

Birthday problem
Use the formular Pn= Mpn \ M^n, where M is the number of days in a year. (365)
benji93: 12:54pm On Dec 05, 2015
stlaibrowne:


I am 100000000000000% sure you need to read the question again. Because actually at t=60 h is not zero but h=-12000 and that's not zero. Get my point ?
Well my friend you are partly right, but your interpretation is not clear, the question says that if i look at the rocket at time t>20 i will see it at ground level, people from different fields will have different interpretation, as a physicist i would say that at h(60)=0,and the kinetic energy gained by the rocket as it reached ground level zero was dispelled into other froms of energy, including sound and heat
benji93: 1:16pm On Dec 05, 2015
MathsChic:

Only a mathematician can tell such joke, cos it's all in favour of mathematicians. Funny, clever joke cheesy


Today I was thinking something. The ratio of the circumference of a circle to its diameter is a number that doesn't occur in nature any other way, besides as a ratio of circumference to diameter. Isn't that just spectacular? Or am I wrong? Does it have other occurences?
a circle is the one shape that defines creation.
benji93: 1:19pm On Dec 05, 2015
I think the cross product of two or more vectors is as scalar as the dot product of the two vectors, but most mathematicians all over the world believe in it as a vector. I think there is something illogical about the general derivation of cross product.What do you think?
John93(m): 9:18pm On Dec 06, 2015
maryannah:

Birthday problem
Use the formular Pn= Mpn \ M^n, where M is the number of days in a year. (365)

still dnt gt.....could u pls solve on paper,snap & ....thanks
Hadampson(m): 3:27pm On Dec 07, 2015
[color=#006600][/color]Please help me with this questions (1) integrate 7x+8/ 2x^2+11x+5 (2) diffentiate y=sinx/x^2 angry
Mathemagician1(m): 4:34pm On Dec 07, 2015
Hadampson:
[color=#006600][/color]Please help me with this questions (1) integrate 7x+8/ 2x^2+11x+5 (2) diffentiate y=sinx/x^2 angry

Hadampson(m): 5:51pm On Dec 07, 2015
[quote author=Mathemagician1 post=40779133][/quote] for d 2nd question, u r to use quotient rule nt product rule.
Mathemagician1(m): 6:17pm On Dec 07, 2015
Hadampson:
for d 2nd question, u r to use quotient rule nt product rule.

You didn't notice that I re modified the equation. Whether you use product or quotient rule in this regard your answer is always going to be the same.

-x^-3(2sinx - xcosx) and (xcosx - 2sinx) / x^3 are the same.

jerome263: 7:13pm On Dec 07, 2015
waking my memory in maths
Hadampson(m): 10:25pm On Dec 07, 2015
Mathemagician1:


You didn't notice that I re modified the equation. Whether you use product or quotient rule in this regard your answer is always going to be the same.

-x^-3(2sinx - xcosx) and (xcosx - 2sinx) / x^3 are the same.
thanks mathemagician I rili appreciate it. smiley
Mathemagician1(m): 6:16am On Dec 08, 2015
Hadampson:
thanks mathemagician I rili appreciate it. smiley

You're most welcome sir.
Hadampson(m): 5:13pm On Dec 08, 2015
What course can someone study without physics?

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