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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 Nobody: 1:04pm On Aug 25, 2014 |
Oxide65: ok...uwc.man...whats €-N...?. sir ... i probably don't know it. |
Re: Nairaland Mathematics Clinic by Nobody: 1:08pm On Aug 25, 2014 |
Arithmetic: @boss, (b), can be solved also by DE MOIVRE'S Theorem... My opinion. yes...my guy.... use it lets see. |
Re: Nairaland Mathematics Clinic by Oxide65: 9:36pm On Aug 25, 2014 |
benbuks: it's d epsilon -N argument of proving convergence. |
Re: Nairaland Mathematics Clinic by Soneh(m): 9:01am On Aug 26, 2014 |
find the values for which the following are TRUE (a)tan^2¢+2ec¢=5 ........0<=¢<=180 (b)sin¢-cos2¢+3=0........-180<=¢<=180 pls gurus in the house come to my rescue |
Re: Nairaland Mathematics Clinic by Nobody: 1:12pm On Aug 26, 2014 |
pls help solve this WAEC question make q subject of formula; a/p - b/q = c I've tried, bt my answer doesn't correspond with the one at the back of the textbook |
Re: Nairaland Mathematics Clinic by dejt4u(m): 1:38pm On Aug 26, 2014 |
Preboy: pls help solve this WAEC questionq = bp/(a-pc) |
Re: Nairaland Mathematics Clinic by Oxide65: 1:39pm On Aug 26, 2014 |
[quote author=Preboy]pls help solve this WAEC question make q subject of formula; a/p - b/q = c I've tried, bt my answer doesn't correspond with the one at the back of the textbook[/quote |
Re: Nairaland Mathematics Clinic by Oxide65: 1:40pm On Aug 26, 2014 |
[quote author=Preboy]pls help solve this WAEC question make q subject of formula; a/p - b/q = c I've tried, bt my answer doesn't correspond with the one at the back of the textbook very difficult question. |
Re: Nairaland Mathematics Clinic by alentyno: 1:43pm On Aug 26, 2014 |
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Re: Nairaland Mathematics Clinic by alentyno: 1:45pm On Aug 26, 2014 |
Preboy: pls help solve this WAEC questionCheap. Step1----add b/q to both sides and subtract c from both sides U will have--- a/p - c = b/q Step2------ take LCM of left hand side U will have--- (a-cp)/p = b/q Step 3------ take inverse of both sides U will have--- p/(a-cp) =q/b Step 4--- multiply both sides by b Final ans----- q = bp/(a-cp) Preboy the workings are here. Initially missunderstood the question |
Re: Nairaland Mathematics Clinic by Nobody: 1:53pm On Aug 26, 2014 |
dejt4u:your answer is correct, plz the workings |
Re: Nairaland Mathematics Clinic by dejt4u(m): 2:19pm On Aug 26, 2014 |
Preboy:a/p - b/q = c, a/p - c = b/q, (a-pc)/p = b/q, q(a-pc) =bp, q= bp/(a-pc) |
Re: Nairaland Mathematics Clinic by Nobody: 2:31pm On Aug 26, 2014 |
dejt4u:wow kul method, just solved it though my method is way longer and different a/p - b/q = c qa - bp/pq = c qa - bp = cpq qa - cpq = bp q(a - cp) = bp q = bp/a- cp |
Re: Nairaland Mathematics Clinic by Khoded(m): 2:56pm On Aug 26, 2014 |
guys i'm bad @ maths, can you gurus pls recommend any maths textbook/ebook that'll help. |
Re: Nairaland Mathematics Clinic by Nobody: 4:43pm On Aug 26, 2014 |
hnm.. |
Re: Nairaland Mathematics Clinic by Nobody: 4:43pm On Aug 26, 2014 |
Khoded: guys i'm bad @ maths, can you gurus pls recommend any maths textbook/ebook that'll help. what level .? |
Re: Nairaland Mathematics Clinic by Nobody: 4:45pm On Aug 26, 2014 |
I am thinking of a 6-digit number. The sum of the digits is 43 and only two of the following three statements about the number are true: 1.It is a square number 2. It is a cube number and 3. The number is under 500000 Also tell me which of the statements are true and give ur answer! |
Re: Nairaland Mathematics Clinic by Obinoscopy(m): 4:55pm On Aug 26, 2014 |
benbuks:Correct! What about this? Obinoscopy: Dear Maths Guru, |
Re: Nairaland Mathematics Clinic by Nobody: 5:09pm On Aug 26, 2014 |
Obinoscopy: Correct! sorry sir , idea currently unavailable . maybe when i study it , I'll be able to decipher something . |
Re: Nairaland Mathematics Clinic by Nobody: 5:14pm On Aug 26, 2014 |
Soneh: find the values for which the following are TRUE @ bolded is it sec.tita or 2 sec.tita ....? |
Re: Nairaland Mathematics Clinic by dejt4u(m): 5:44pm On Aug 26, 2014 |
benbuks: I am thinking of a 6-digit number. The sum of the digits is 43 and only two of the following three statements about the number are true:only 1 nd 3 are true.. And the number is 499849 |
Re: Nairaland Mathematics Clinic by Soneh(m): 5:57pm On Aug 26, 2014 |
benbuks:oops its 2sec tita thanks |
Re: Nairaland Mathematics Clinic by Kovic08(m): 10:40am On Aug 27, 2014 |
Please help me solve these question with clarity 1. Find the total surface area of a solid hemisphere of diameter 6.6 2. A solid is made up of a cylinder with a hemisphere on top. Calculate its surface area. 3. Find the volume of a given triangular prism with a right-angled triangle 9cm by 12cm by 16cm and length 18cm 4.how many tiles each of side 8cm are needed to tile a floor 22m 40cm long by 12m 80cm wide 5.a rectangular pool 10m by 5m is surrounded by a path 1m wide. What is the area path ... Please show workings in all |
Re: Nairaland Mathematics Clinic by Oxide65: 2:25pm On Aug 27, 2014 |
Obinoscopy: Dear Maths Guru, Do u mean that Which ascertains convergence of series? |
Re: Nairaland Mathematics Clinic by Obinoscopy(m): 2:28pm On Aug 27, 2014 |
Oxide65:Yes! I want to understand it from another mathematician's perspective. |
Re: Nairaland Mathematics Clinic by Drniyi4u(m): 6:55pm On Aug 27, 2014 |
Kovic08: Please help me solve these question with clarityTotal surface area of a sphere = 4Πr²@ An hemisphere contains half of d total surface of sphere + a circle i.e surface area of hemisphere = [(4Πr²)/2] + Πr² = 2Πr² + Πr² = 3Πr² since diameter = 6.6 units radius = 3.3 units therefore, total surface area = 3×Π×3.3² = 102.68 sq units |
Re: Nairaland Mathematics Clinic by Drniyi4u(m): 7:11pm On Aug 27, 2014 |
Kovic08:for a joined hemisphere nd cylinder, curved surface area of hemisphere = 2Πr² curved surface area of cylinder = 2Πrh (where h=height of d cylinder) area of base circle of d cylinder = Πr² therefore, total surface area = 2Πr² + 2Πrh + Πr² = 3Πr² + 2Πrh = Πr(3r + 2h) |
Re: Nairaland Mathematics Clinic by Drniyi4u(m): 7:18pm On Aug 27, 2014 |
Kovic08:are u sure of d dimension of triangle "9 by 12 by 16"? d combination can never form a right angled triangle, I guess d 16 should be 15. If so, volume of a solid shape = base(triangular) area × height = (½*9*12) × 18 =972cm² |
Re: Nairaland Mathematics Clinic by Drniyi4u(m): 7:36pm On Aug 27, 2014 |
Kovic08:N.B 100cm = 1m I guess d tile is a square tile To calculate d number of tiles, U'll calculate d area of d floor, then divide it by d area of d tile In calculating d area of d floor, U'll make use of just a unit (I'll use cm) length of floor = 22m40cm = 2240cm breadth of floor = 12m80cm = 1280cm Area of the floor = 2240 × 1280 cm² Area of tiles = 8 × 8 cm² Therefore number of tiles = (2240×1280)/(8× =44800 tiles |
Re: Nairaland Mathematics Clinic by dejt4u(m): 7:40pm On Aug 27, 2014 |
Kovic08: 5.a rectangular pool 10m by 5m is surrounded by a path 1m wide. What is the area path ...16m2 total dimension is 11m by 6m total area = 66m2 area of the pool= 50m2 (from d dimension 10m by 5m).. Area of the lawn = 66m2-50m2 =16m2 |
Re: Nairaland Mathematics Clinic by Drniyi4u(m): 7:48pm On Aug 27, 2014 |
Kovic08:checking dat question properly, two rectangles are involved, one with dimension 10m by 5m, the other rectangle(considering the path) with dimension (10+1)m by (5+1)m To calculate d area of d path, U'll subtract d area of d smaller rectangle from d larger one Area of smaller rectangle = 10m × 5m = 50m² Area of larger rectangle = 11m × 6m = 66m² therefore, area of d path = 66 - 50m² = 16m² |
Re: Nairaland Mathematics Clinic by iamliltee(m): 9:09pm On Aug 27, 2014 |
Drniyi4u:IMO tho, I think the length and breath of the larger rectangle should be 12m and 7m respectively,since the path covers all the 4-sides,therefore it adds 2m to the length and the breath... |
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