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Nairaland Mathematics Clinic - Education (167) - Nairaland

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Re: Nairaland Mathematics Clinic by yoji: 11:40am On Feb 27, 2015
Pls gurus I need help with this situation:
A car of costing 1,750,000 is to b used for 3yrs after which its to b sold off at quarter d price(437,500).if it was used for 4yrs and 3mnths, hw much shud it b sold??
Re: Nairaland Mathematics Clinic by randwise(m): 9:04pm On Feb 27, 2015
here it is

Re: Nairaland Mathematics Clinic by adigunsherif: 7:53am On Feb 28, 2015
Re: Nairaland Mathematics Clinic by randwise(m): 9:46am On Feb 28, 2015
Wow... very great!!! Jazakumulah my brother..

1 Like

Re: Nairaland Mathematics Clinic by randwise(m): 10:09am On Feb 28, 2015
this too.. -3<=[((x-1)(x-5))/(x-3)]<=-3
Re: Nairaland Mathematics Clinic by adigunsherif: 11:29am On Feb 28, 2015
maybe i should enable forum on my website so that you guys can enjoy the beauty of mathematics

i kuku loose nothing anyway.
Re: Nairaland Mathematics Clinic by thankyouJesus(m): 4:44pm On Feb 28, 2015
All hail to the mathematical gurus of our time, I am back to contribute my quota.
Re: Nairaland Mathematics Clinic by Laplacian(m): 6:37pm On Feb 28, 2015
Find the differential equation corresponding to;
y=Ae^3x+Be^x.............(1)

Solution:
since there are two unknown constants (A & B), we need two differential equations.
y'=3Ae^3x+Be^x..............(2.)

y"=9Ae^3x+Be^x................(3.)

if, from eqn(1), we substitute for Be^x in (2) and (3) we get;
y'=2Ae^3x+y...................(4)

y"=8Ae^3x+y...................(5)

now, y"-4*eqn(4) gives
y"-4y'+3y=0
Re: Nairaland Mathematics Clinic by emmyeuler1: 6:45pm On Feb 28, 2015
Laplacian:
Find the differential equation corresponding to;
y=Ae^3x+Be^x.............(1)

Solution:
since there are two unknown constants (A & B), we need two differential equations.
y'=3Ae^3x+Be^x..............(2.)

y"=9Ae^3x+Be^x................(3.)

if, from eqn(1), we substitute for Be^x in (2) and (3) we get;
y'=2Ae^3x+y...................(4)

y"=8Ae^3x+y...................(5)

now, y"-4*eqn(4) gives
y"-4y'+3y=0
sir laplacian,i hail oooooo!!!!...........tnx bro

1 Like

Re: Nairaland Mathematics Clinic by Faitty20(f): 4:38pm On Mar 02, 2015
pls help with this question
Re: Nairaland Mathematics Clinic by agentofchange1(m): 6:29pm On Mar 02, 2015
where ?.
Re: Nairaland Mathematics Clinic by agentofchange1(m): 6:29pm On Mar 02, 2015
Faitty20:
pls help with this question

.??
Re: Nairaland Mathematics Clinic by adigunsherif: 7:31pm On Mar 02, 2015
Faitty20:
pls help with this question

no question,
Re: Nairaland Mathematics Clinic by adigunsherif: 7:35pm On Mar 02, 2015
randwise:
this too.. -3<=[((x-1)(x-5))/(x-3)]<=-3

you can post this question in the comment box under the last post on my website www.adigunsherif.com/maths/please-help-him-simplify-this .

wrap them in back-tick `your-equation` and will solve it easily for you .
Re: Nairaland Mathematics Clinic by Nobody: 10:30pm On Mar 02, 2015
benji93:
(12345678*12345678)-(12345676*12345680)
Re: Nairaland Mathematics Clinic by adigunsherif: 10:00am On Mar 03, 2015
Re: Nairaland Mathematics Clinic by Videx1: 2:54pm On Mar 04, 2015
I ask a question none of u guy reply me. Y?
Re: Nairaland Mathematics Clinic by Videx1: 2:56pm On Mar 04, 2015
Videx1:
Who can please explain infinite series using covergence e.t.c.... With example
I ask u guy a question none of u reply me. Y?
Re: Nairaland Mathematics Clinic by adigunsherif: 3:46pm On Mar 04, 2015
"explain infinite series using convergence."

Type that in Google. You will never be disappointed.

About 70,200,000 results (0.39 seconds)! cheesy Great Google!

Goodluck in your search. grin
Re: Nairaland Mathematics Clinic by Nobody: 4:27pm On Mar 05, 2015
Onase:
ok.I will re.send the P.m.
agent...of...change...pls...send...ur...email...
Re: Nairaland Mathematics Clinic by agentofchange1(m): 6:15pm On Mar 05, 2015
Onase:
agent...of...change...pls...send...ur...email...

benbuks10@gmail.com. or. Kachalla6@gmail.com
Re: Nairaland Mathematics Clinic by agentofchange1(m): 6:22pm On Mar 05, 2015
Videx1:
I ask u guy a question none of u reply me. Y?

you should at least post a question on it , could help more , we're not being paid for solving questions here . just sacrificing time /energy /MB. to see we help when chanced . u sit there asking Y , as if. u kept us here ..haba ..let's be considerate . one good turn deserves another .

hope u get ma gist bro.

1luv.

2 Likes

Re: Nairaland Mathematics Clinic by agentofchange1(m): 6:33pm On Mar 05, 2015
DeeCherry:


yes I can but I want a full solution. pls

my dear , SMH ....

just came here , post your question , got solution , then went away without saying a word , haba ..not as if any1 is asking 4 money from .u but how much z simple " thank you " . not as if it will change anything , or stop me/us from rendering help , or u think it all ends on NL , life is far beyond that dear . however the case , its well we're friends /brothers will continue the help as far as possible.


#i greet you ma darling..

1 Like

Re: Nairaland Mathematics Clinic by Nobody: 9:12pm On Mar 05, 2015
agent...of...change...pls...check...ur...mail...
Re: Nairaland Mathematics Clinic by DeeCherry(f): 10:16pm On Mar 05, 2015
agentofchange1:


my dear , SMH ....

just came here , post your question , got solution , then went away without saying a word , haba ..not as if any1 is asking 4 money from .u but how much z simple " thank you " . not as if it will change anything , or stop me/us from rendering help , or u think it all ends on NL , life is far beyond that dear . however the case , its well we're friends /brothers will continue the help as far as possible.


#i greet you ma darling..

yeee! I am very very sorry. pls plsn just forgive my act. it's not what you think o! I've been very busy recently due to exams. I'm not an ungrateful person. I'm very sorry. Thank you very much, ur solution helped a whole lot. God bless u.

chei! I'm sorry
Re: Nairaland Mathematics Clinic by adigunsherif: 8:41am On Mar 06, 2015
Re: Nairaland Mathematics Clinic by agentofchange1(m): 1:21pm On Mar 06, 2015
DeeCherry:


yeee! I am very very sorry. pls plsn just forgive my act. it's not what you think o! I've been very busy recently due to exams. I'm not an ungrateful person. I'm very sorry. Thank you very much, ur solution helped a whole lot. God bless u.

chei! I'm sorry


its OK my dear , we're cool. I understand u perfectly, happens periodically. wish u d best in ur exams.

#1luv.
Re: Nairaland Mathematics Clinic by agentofchange1(m): 1:24pm On Mar 06, 2015
Onase:
agent...of...change...pls...check...ur...mail...

seen.
Re: Nairaland Mathematics Clinic by ayodijex(m): 6:08pm On Mar 06, 2015
Ok...help needed here.

..
The 3rd,6th and 7th term of a G.P whose common ratio is neither 0 nor 1 are in A.P. Prove that the sum of the first three is equal to the 4th term.
Re: Nairaland Mathematics Clinic by DeeCherry(f): 7:08pm On Mar 06, 2015
agentofchange1:



its OK my dear , we're cool. I understand u perfectly, happens periodically. wish u d best u in ur exams.

#1luv.

Thank you very much kiss kiss kiss kiss kiss kiss
Re: Nairaland Mathematics Clinic by Mubarak1(m): 12:04pm On Mar 07, 2015
Hello Maths gurus I show I showed no interest in maths in my secondary school and I'm now regretting in my pre degree studies.
We started with indices I managed to learn and solve for rules but I didn't understand the remaining two rules;
1. a^-1 = 1÷a. a^m = 1÷a^m

2. a^1/2 = √a a^m = 1÷a^m
a^n÷m = (a^1÷m)^n = (m√a)^n. ^ means power of

Help and break through it for me with examples. and is there any difference between ÷ and / in mathematics?

Pls help me if it's there Physics threat on Nairaland.
Re: Nairaland Mathematics Clinic by agentofchange1(m): 5:32pm On Mar 07, 2015
We know little about this Greek mathematician from Alexandria, called the father of algebra, except that he lived around 3rd century A.D. Thanks to an admirer of his, who described his life by means of an algebraic riddle, we know at least something about his life.
Diophantus's youth lasted 1/6 of his life. He had his first beard in the next 1/12 of his life. At the end of the following 1/7 of his life Diophantus got married. Five years from then his son was born. His son lived exactly 1/2 of Diophantus's life. Diophantus died 4 years after the death of his son. How long did Diophantus live?

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