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Nairaland Forum / Nairaland / General / Education / Nairaland Mathematics Clinic (497202 Views)
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 itstinaofficial(f): 4:45pm On Oct 08, 2020 |
YoungDaNaval:yeah |
Re: Nairaland Mathematics Clinic by officialfestus(m): 12:45pm On Oct 09, 2020 |
Solved |
Re: Nairaland Mathematics Clinic by Najdorf: 8:42pm On Oct 09, 2020 |
itstinaofficial:I think there are some issues here. |
Re: Nairaland Mathematics Clinic by YoungDaNaval(m): 6:14am On Oct 10, 2020 |
itstinaofficial:Hey, let's be friends |
Re: Nairaland Mathematics Clinic by YoungDaNaval(m): 6:14am On Oct 10, 2020 |
Najdorf:Point them out |
Re: Nairaland Mathematics Clinic by Spartancosta(m): 7:02am On Oct 10, 2020 |
Alao046:x^(1/√x)=2 applying natural log In(x^(1/√x)=In2 (1/√x)Inx=In2 (x^-1/2)Inx=In2 since e^In=1 (e^In(x^-1/2)Inx=In2 (e^-1/2Inx)Inx=In2 multiplying both sides by -1/2 (e^-1/2Inx)(Inx*-1/2)=(-1/2)(In2) (e^-1/2Inx)(-1/2Inx)=-1/(2In2) since. W(xe^x)=x adding W to both sides -1/2Inx=W(-1/(2In2)) multiplying by -2 Inx=-2W(-1/(2In2) e^Inx=e^-2W(-1/(2In2) x=e^-2W((-1/2In2)) x will have 4 solutions including 2 complex solutions don't have the Wolfram alpha but I'm sure x=4 |
Re: Nairaland Mathematics Clinic by mathefaro(m): 11:16am On Oct 10, 2020 |
Spartancosta:Fixed e^x and lnx are the inverses of each other |
Re: Nairaland Mathematics Clinic by mathefaro(m): 11:37am On Oct 10, 2020 |
YoungDaNaval:The only/ main issue is the conclusion "hence y = 2" as a solution to the equation y² = 2^y. It is tantamount to the following x^(1/√x)=2 Hence x = 4 |
Re: Nairaland Mathematics Clinic by Spartancosta(m): 2:35pm On Oct 10, 2020 |
mathefaro:I don't get you? |
Re: Nairaland Mathematics Clinic by Spartancosta(m): 2:59pm On Oct 10, 2020 |
mathefaro:yeah In(e^x)=e^(Inx) |
Re: Nairaland Mathematics Clinic by mathefaro(m): 3:27pm On Oct 10, 2020 |
Spartancosta:what I meant was that. It is not really correct to say e^ln = 1 There has to be an argument to the log function. |
Re: Nairaland Mathematics Clinic by Spartancosta(m): 5:22pm On Oct 10, 2020 |
mathefaro:you are right 2 Likes |
Re: Nairaland Mathematics Clinic by ayubasodeeq(m): 6:31pm On Oct 10, 2020 |
Derive the rules of pascal triangle and solve this using pascal triangle and correct to 2d.p (1.01)4 |
Re: Nairaland Mathematics Clinic by Spartancosta(m): 7:08pm On Oct 10, 2020 |
ayubasodeeq:(a+b)⁴=a⁴+4a³b+6a²b²+4ab³+b⁴ (1.01)=(1+0.01) 1=a 0.01=b (1.01)⁴=1⁴+4(1³)(0.01)+6(1²)(0.01)²+4(1)(0.01)³+(0.01)⁴ will modify this later, I'm typing on the road 1⁴+4(0.01)+6(0.0001)+4(0.000001)+0.00000001 1+0.04+0.0006+0.000004+0.00000001 =1.04060401 =1.041(app.) 1 Like |
Re: Nairaland Mathematics Clinic by simiife: 8:07pm On Oct 10, 2020 |
Wow,I had no idea there was a thread like this,I need someone to solve these questions
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Re: Nairaland Mathematics Clinic by Spartancosta(m): 8:21pm On Oct 10, 2020 |
simiife:1.nth term =3^(n-1) 1st term =3^(1-1)=3°=1 2nd=3^(1-2)=3^-¹=1/3 3rd=3^(1-3)=3^-²=1/9 sum =1/3+1/9=(4/9)+1=13/9 2. 81^(3/4) -27^(1/3)/(3*2³) (⁴√81)³-(³√27)/(3*2³) (3)³-(3)/3*2³ =27-3/(3*2³) 24/(3*2³) 24/24=1 4. sum of interior angles =(180n-360) 1800=180n-360 1800+360=180n 2160=180n n=2160/180=12 number of sides =12 each angle=1800/12=150° sum of interior angles and exterior angle of a regular polygon =180 150+e=180 e=180-150 e=30° 3. y=x³-x differentiating y=3x²-1 solving the quadratic equation a=3,b=0,c=-1 =(√-(4*3*-1))/2*3 =(√12)/6 =2√3/6 =√3/3 |
Re: Nairaland Mathematics Clinic by ayubasodeeq(m): 8:31pm On Oct 10, 2020 |
Spartancosta:Are you a teacher |
Re: Nairaland Mathematics Clinic by Spartancosta(m): 9:44pm On Oct 10, 2020 |
ayubasodeeq:no sir |
Re: Nairaland Mathematics Clinic by itstinaofficial(f): 8:59am On Oct 11, 2020 |
Najdorf:where exactly? |
Re: Nairaland Mathematics Clinic by mathefaro(m): 9:22am On Oct 12, 2020 |
itstinaofficial:I've stated the issue in a post up there |
Re: Nairaland Mathematics Clinic by Entrepreneurrr: 1:34pm On Oct 31, 2020 |
Help me solve this please
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Re: Nairaland Mathematics Clinic by simiife: 3:34pm On Oct 31, 2020 |
Anyone please
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Re: Nairaland Mathematics Clinic by Obinoscopy(m): 5:50pm On Oct 31, 2020 |
Entrepreneurrr:Have you attempted solving it? If you have, where exactly did you get stuck? Let me know so I can take it up from there. |
Re: Nairaland Mathematics Clinic by Obinoscopy(m): 5:51pm On Oct 31, 2020 |
simiife:Have you attempted solving them? If you have, where exactly did you get stuck? Let me know so I can take it up from there. |
Re: Nairaland Mathematics Clinic by yusman14(m): 6:31pm On Oct 31, 2020 |
Entrepreneurrr:The answer to the second question is x=5/4 |
Re: Nairaland Mathematics Clinic by yusman14(m): 6:33pm On Oct 31, 2020 |
simiife:the second question Is not clear..is is 2√x-1/x ?? |
Re: Nairaland Mathematics Clinic by Najdorf: 7:31pm On Oct 31, 2020 |
Obinoscopy:Exactly. It feels like he hasn't even looked at the questions at all. |
Re: Nairaland Mathematics Clinic by Entrepreneurrr: 9:30pm On Oct 31, 2020 |
Obinoscopy: For the first question I didn’t try it because I don’t know how to evaluate different bases. The second one, i tried but i don’t think i got it right (see the workings)
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Re: Nairaland Mathematics Clinic by Entrepreneurrr: 9:38pm On Oct 31, 2020 |
Najdorf: Its not like that I haven’t learn mathematics for the fast 6 years, so my brain is not that active their. I am trying to brush up my brain |
Re: Nairaland Mathematics Clinic by MeetDx(m): 9:42pm On Oct 31, 2020 |
yusman14: No be 1? Dy/dx = 2rtX/X - 1 = 2*1/1 -1 = 1 Then again maybe it 1/x the problem is not clear |
Re: Nairaland Mathematics Clinic by MeetDx(m): 9:43pm On Oct 31, 2020 |
Entrepreneurrr: X=5/4 1 Like |
Re: Nairaland Mathematics Clinic by mathefaro(m): 7:41am On Nov 01, 2020 |
Entrepreneurrr:This is what you need. 1 Like
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