₦airaland Forum

Ibrahimlekzy: I accessed it on fone

george31: Pls can someone tell me how i can apply for a Direct Entry into Unilag....also what are the requirements?

Ibrahimlekzy: Pls sum1 shd teach me how to check jamb result with e-facility card....I can acccess jamb website but i dunno how to check to check with d card

oyestephen: Gooooood morninf people.....how was your night ? @ortarico @labodinho @farano thanx guys for keeping this place lively...lemme help out too
1. The sum of the first n terms of an A.P is 252. If the first term is -16 and the last term is 72. Fimd the number of terms in the AP
a)8 b)9 c)6 d)7 e)5
2)evaluate 2 / [(64/125) ^ -2/3]

Edis4christ: Oladoya, pls u ae wrong........my boss mathefaro nd mr calculus ae right.
U cn still solve it dis way
x^2=4x, d.b.s by x
U will ave x=4
OR
x^2=4x
x^2 - 4x + 0=0
Factorise using general quadratic formula, u will have
x=4 or x=0
Therefore x=4.

Mr Calculus: x^2=4x..first apply log to both sides
logx^2=log(4*x)
2logx=log4+logx...by collecting lyk terms
2logx-logx=log4
logx=log4..log cancel log
::x=4

mathefaro: xlog2 - 2log2 is not equal to log2(x-2) but (x-2)log2 which would in turn give log2^(x-2)

Ajani2010: first convert to base 10...(1*3~3+2*3~2+3*3~1+4*3~0.2*3~-1+3*3~-2+3*3~-3)=58.1 base10 cònvert to base 5= (58.1base10)={213.01 base5}

Ajani2010: first convert to base 10...(1*3~3+2*3~2+3*3~1+4*3~0.2*3~-1+3*3~-2+3*3~-3)=58.1 base10 cònvert to base 5= (58.1base10)={213.01 base5}

mathefaro: You don't seem to understand the laws of logarithms. Please, try to go and learn more about it cos the two solutions u gave contain lots of logarithm blunders. Hope i didnt sound too insolent

masperano: this oladoya way of solving maths is very hilarious (log cancels log) nairalanders ignore his solutions ooo lol very funny dude! @oladoya ur manipulations na wa ooo u na albert Einstein for manipulation

ladokuntlad: pls help me find d value of x if x^2=4x. show workings oooo. hint x=4

Ajani2010: my guy...who told u nobody can solve that

Ajani2010: my guy...who told u nobody can solve that

@farano:
1. Ist of all cnvert 1234.233 base 3 to base 10 .: (1*3^3)+(2*3^2)+(3*3^1)+(4*3^0)+(2*3^-1)+(3*3^-2)+(3*3^-3) =27+18+9+4+2/3+3/9+3/27=58+10/9 which is 58+1.1111=59.12base10. Then convert 59.12base10 to base 5 which is 214.03base5. The only number which is both even & prime is 2

Ortarico: If na so abeg no vex oo, na oladoya himself locate d thread oo...
Na im b dix:

1. No of d children times d AV age: 6 * 47/2 = 141

Now, their father plus mother: 2 * 59/2 = 59

AV age of d family= Tot AV divided by their numbers:
141/8 + 59/8 = 200/8
:. AV = 25 yrs. . . .ans

2. X+y/x-y - x-y/x+y
LCM is (x-y)(x+y)
(x+y)^2 - (x-y)^2/(x+y)(x-y)

(x^2+y^2+2xy) - (x^2+y^2-2xy)/(x-y)(x+y)
Clear brackets and collect like terms:
x^2-x^2+y^2-y^2+2xy+2xy/(x-y)(x+y)

=> 4xy/(x-y)(x+y). . . . .ans

labodinho: I dey feel u ma guy,i've been longing to hit a thread like dis to express ma feeling bout maths....i luv yur workings thr on our thread...kan u check dah qustn on our thread n see if u can help cos i've tried n i'm stuck in d middle.

Ortarico: If na so abeg no vex oo, na oladoya himself locate d thread oo...
Na im b dix:

1. No of d children times d AV age: 6 * 47/2 = 141

Now, their father plus mother: 2 * 59/2 = 59

AV age of d family= Tot AV divided by their numbers:
141/8 + 59/8 = 200/8
:. AV = 25 yrs. . . .ans

2. X+y/x-y - x-y/x+y
LCM is (x-y)(x+y)
(x+y)^2 - (x-y)^2/(x+y)(x-y)

(x^2+y^2+2xy) - (x^2+y^2-2xy)/(x-y)(x+y)
Clear brackets and collect like terms:
x^2-x^2+y^2-y^2+2xy+2xy/(x-y)(x+y)

=> 4xy/(x-y)(x+y). . . . .ans

labodinho: @ oladoya n ortarico,i caught u two today..so dis's whr u ppl ignite d thread(unilag thread). @ all in d Ministry of maths guru,i hail o n i hope ma kuming here will revive ma maths skills.

Ortarico: 1. E
2. 4xy/(x-y)(x+y)

nice one bro and thanks for highing my morale which GP lowered. . . . .

Ortarico: ^^ @oladoya, so you don know my crib bah? Eco studentz're maths gurus, welcome oo. . . .

Mr Calculus: plz guyz need ur help:::Convert 1111.100110 base 2 to base
12 and 123.X4 base 12 to base 2 without converting first to base 10

Calculusf(x):
Please nairaland gurus.help me with this question...2^x + 3^x=13...pls my email address is omoyeleolalekanjacob@gmail.com or 2go username mathemagician

TopSpot: Economics aspirant Oyo. I don't 2go so I can't add you.

Ortarico: Score 203 is a high mark dis yr, I think u're gud 2go even if u score 70+ in ya p-utme. . . . .kolorun fun wa $ey

yemmytcm: youre welcome mr.AY,whats ya jamb score ? Oga Ortarcio,you don av another person join una o....physiotherapist where are you pple na