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Mathematics Clinic / 2015 Cowbell Mathematics Champion, Akinkuowo Honoured By School. / Lead City University Clinic Welcomes First Ever Baby Since 10 Years Of Opening (2) (3) (4)
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Re: Nairaland Mathematics Clinic by Godiskind: 9:31pm On Sep 09, 2014 |
Abeg mek una no misguide those of us wey still dey learn. Ur 1st eqn is correct. The other two are incorrect. It should rather be; 2. aLogx +blogy=log(x^a.y^b) 3. Logx-logy= log(x/y) op I hope am on line? solomon111: The fifth equation follows the principle/laws of logarithm. |
Re: Nairaland Mathematics Clinic by Nobody: 4:17pm On Sep 11, 2014 |
someone here should define d CARTESIAN PRODUCTS of two sets X and Y? hence prove rigorously that AX(B-C)=(AXB)-(AXC)? |
Re: Nairaland Mathematics Clinic by Ajagbe97(m): 5:19pm On Sep 11, 2014 |
benbuks: someone here should define d CARTESIAN PRODUCTS of two sets X and Y?-i think Cartesian product of two sets form ordered pairs belonging to d set .IE... AXB=(a, b) for a€A and b€B -PROOF : |
Re: Nairaland Mathematics Clinic by Nobody: 5:49pm On Sep 11, 2014 |
Mathematical Love letter: I discovered a letter written by one of the maths students to a girl at a secondary school. Here is what the guy wrote... Dear sarah, With reference to the syllabus of my feelings, I want to prove that the locus of my point is directly proportional to your heart. On seeing you, I feel like a triangle with only 2 angles, the third one being you. At times I feel like a circle without a circumference and a tangent without a gradient. We are like two simultaneous equations without solutions. You never seem to notice that I am a point lying at your linear equation. Your smile make my mind rotate 360 degrees anticlockwise and applying a translation, I finally get your image. You are factors of a quadratic equation but still feel two disjoint sets. You are the hypotenuse of my right angled triangle and on using either sine or cosine, we can obtain a real solution. I tried to deal with you on a calculator version but the probability of success is very low. My letter consists of only one section to be answered without a calculator and the answer is to be given "Yes" in three significant figures. My life without you is like coordinates of a quadratic turning point. My love for you is infinite like the graph of Tan 90 and Tan 270 degrees. Yours sabatical 4 Likes 1 Share |
Re: Nairaland Mathematics Clinic by Nobody: 6:25pm On Sep 12, 2014 |
benbuks:sorry you didn't get a reply after you posted. i did solve and get this answer but the material i saw the question on had a different answer and i was beginning to get confused. they got 5^3x.3ln5. but since you got what everyone else is getting i guess they made a mistake. try out the integral of cos(wt+teta).dt |
Re: Nairaland Mathematics Clinic by Soneh(m): 7:19pm On Sep 12, 2014 |
benbuks:sorry for replying this late,my phone had a problem. pls I dont get the part where you introduced v to the equation representing both tan and sec PLEASE explain. |
Re: Nairaland Mathematics Clinic by Nobody: 12:40pm On Sep 14, 2014 |
Elliotwiz1: sorry you didn't get a reply after you posted. i did solve and get this answer but the material i saw the question on had a different answer and i was beginning to get confused. they got 5^3x.3ln5. but since you got what everyone else is getting i guess they made a mistake. try out the integral of cos(wt+teta).dt ok bro , you don't have be confused , since you could easy check your answer by integrating. don't always depend on answers from texts /some other materials ,try to develop some mathematical confidence & independence , reason i like math. u could prove easily your results , BTW: integral of cos(wt + tita)dt = 1/w *sin(wt + tita) + k ..............( w & tita being constants by putting say u=wt + tita ==> dt =du/w , then replace to obtain your final result ) . hope you get ..? |
Re: Nairaland Mathematics Clinic by Nastydroid(m): 12:52am On Sep 15, 2014 |
*walks in with pen and jotter* 1 Like |
Re: Nairaland Mathematics Clinic by Nobody: 8:44pm On Sep 17, 2014 |
In a certain store,the regular price of a refrigerator is 6oo how much is saved by buying the refrigerator at 20 percent off the regular price rather than buying it on sale at 10percent off their regular price with an additional discount of 10 percent off the sale price .. |
Re: Nairaland Mathematics Clinic by ugonna1054(m): 10:54am On Sep 18, 2014 |
Pls guys, help me out wit these... Suppose we av 2 bags in wch fst one contains 3 white and 7 blue bulbs and d second contains 7 White and 3 blue bulbs..a bag is presented to a student and he draws a bulb and finds it to be white.. From wch bag did he draw from?? |
Re: Nairaland Mathematics Clinic by ugonna1054(m): 12:17pm On Sep 18, 2014 |
Pls guys another. A + C = 1.........1 10A + 15B=9.....2. 15B - 10C = -1.....3 Find A.B and c.. |
Re: Nairaland Mathematics Clinic by dejt4u(m): 11:58pm On Sep 18, 2014 |
ugonna1054: Pls guys another.a=9/10, b=0, c=1/10 |
Re: Nairaland Mathematics Clinic by akpos4uall(m): 12:32pm On Sep 19, 2014 |
dejt4u:This is only one of the possible infinite number of solutions. In a vector/matrix form, (A B C) = (k (9-10k)/15 1-k) Where k can be any number We will get the solution you provided when k = 9/10 (A B C) = (9/10 0 1/10) Using k= 1, 2, 3, 4 & 5, we will arrive at the following solution (1 -1/15 0) (2 -11/15 -1) (3 -7/5 -2) (4 -31/15 -3) (5 -41/15 -4) |
Re: Nairaland Mathematics Clinic by tuwayz(m): 2:11pm On Sep 20, 2014 |
Please guys who can brief me on binary operations am lost |
Re: Nairaland Mathematics Clinic by fasodecapo(m): 7:08pm On Sep 21, 2014 |
http://www.regentsprep.org/regents/math/algebra/an1/binary.htm tuwayz: Please guys who can brief me on binary operations am losthttps://www.princeton.edu/~achaney/tmve/wiki100k/docs/Binary_operation.html |
Re: Nairaland Mathematics Clinic by Nobody: 8:01pm On Sep 21, 2014 |
some1 try this abeg. integral of √( 1 + sinx) dx asap. @ PateEinstein i sight & salute thee boos... guys do something na ....... @ doubledx , oxide65, jackpot, Richeiz , laplacian , . 'other able maths gurus .... ....plz... |
Re: Nairaland Mathematics Clinic by Nobody: 5:36pm On Sep 22, 2014 |
ugonna1054: Pls guys, help me out wit these...this one doesn't need mathematics to get an answer.. it needs magic. REAL DARK MAGIC. |
Re: Nairaland Mathematics Clinic by akpos4uall(m): 2:55pm On Sep 23, 2014 |
benbuks: some1 try this abeg.Use the substitution u = sin x du = cos x dx du = √(1 - sin2 x) dx du = √(1 - u2) dx The integral becomes ∫[√( 1 + u)]du/√(1 - u2) ∫√[( 1 + u)/(1 - u2)] du ∫√[( 1 + u)/{(1 + u)(1 - u)}] du ∫√[1/(1 - u)] du ∫(1 - u)-0.5 du -1 * 2(1 - u)0.5 + k -2√(1 - u) + k -2√(1 - sin x) + k |
Re: Nairaland Mathematics Clinic by Nobody: 4:47pm On Sep 23, 2014 |
akpos4uall: ok bro , let's do a check. obtaining back the integrand by computing the differential coefficient of '-2√(1-sinx) + k ' => (-2) * (1/2) * (-cosx) * (1- sinx) -1/2 => cosx/√(1-sinx) .. can we go further to obtain √(1+sinx) ? |
Re: Nairaland Mathematics Clinic by Nobody: 4:58pm On Sep 23, 2014 |
Soneh:ok sorry re-post the original question |
Re: Nairaland Mathematics Clinic by akpos4uall(m): 5:27pm On Sep 23, 2014 |
benbuks:Yes we can cos x = √(1 - sin2 x) Using s = sin x cosx/√(1-sinx) = [√(1 - s2)]/√(1-s) = √[(1 - s)(1 + s)/(1 - s)] = √(1 + s) = √(1 + sin x) |
Re: Nairaland Mathematics Clinic by Nobody: 10:20am On Sep 24, 2014 |
akpos4uall: yea boss , d question cheep self . tnx man . alternatively , => cosx√(1-sinx) = [cosx√(1+sinx) ]/ [ √(1-sinx) ][ √(1+sinx) ] ……………(rationalizing ) => cos√(1+sinx) /√(1-sin2 x) known that cosx=√(1-sin2 x ) we thus have √(1+sinx) ..........Q.E.D |
Re: Nairaland Mathematics Clinic by Nobody: 10:23am On Sep 24, 2014 |
evaluate d value of x for which 2^x >2x asap. |
Re: Nairaland Mathematics Clinic by Nobody: 2:01pm On Sep 25, 2014 |
benbuks: evaluate d value of x for which 2^x >2xwhat course are you studying in school? |
Re: Nairaland Mathematics Clinic by Nobody: 6:52pm On Sep 25, 2014 |
ayibawanemi: what course are you studying in school? mathematical statistics / operations research. why ask .? |
Re: Nairaland Mathematics Clinic by tuwayz(m): 2:51pm On Sep 26, 2014 |
benbuks: evaluate d value of x for which 2^x >2x2<x<3 |
Re: Nairaland Mathematics Clinic by jackpot(f): 2:31pm On Sep 27, 2014 |
Dear Math Generals, Lieutenants, Colonels, and friends of Maths, please help out: Derive the condition on the constants a, b, c, u, v, w, such that the two circles C1: x2+y2+ax+by+c=0 and C2: x2+y2+ux+vy+w=0 intersect each other. tags: benbuks, doubleDx, Laplacian, Richiez, montty, AmazingAngel, STENON, efficiencie, fasodecapo, Alpha Maximus, etc. |
Re: Nairaland Mathematics Clinic by Nobody: 7:04pm On Sep 27, 2014 |
jackpot: Dear Math Generals, Lieutenants, Colonels, and friends of Maths, please help out: Hey General JP, howdy? It's been a while...9ice, working on your problem! |
Re: Nairaland Mathematics Clinic by thankyouJesus(m): 7:36pm On Sep 27, 2014 |
Please house, in terms of intra/extra competition(s), rigorous tranning and "prospects", which university is the best to study pure and applied mathematics with reason(s)? |
Re: Nairaland Mathematics Clinic by actYourDreams: 8:33pm On Sep 27, 2014 |
In Nigeria or abroad? thankyouJesus: Please house, in terms of intra/extra competition(s), rigorous tranning and "prospects", which university is the best to study pure and applied mathematics with reason(s)? |
Re: Nairaland Mathematics Clinic by thankyouJesus(m): 8:05am On Sep 28, 2014 |
Both if possible please, thank you sir. actYourDreams: In Nigeria or abroad? |
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