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Mathematics Chatroom: Drop Mathematics Equations And Lets Solve - Education - Nairaland

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Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DanceVille: 4:57pm On Feb 03, 2015
.....MATHEMATICIANS....

What's Up Nairalanders Mathematician Scholars?...Here's a Room whereby You can post Mathematics questions and Let us all solve it...Both[Nursery, primary, secondary, Tertiary] Mathematics Equations....

Here's mine:Solve this Equation- [1/tanx]...
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DaZion(m): 5:04pm On Feb 03, 2015
Simple Equation Op.
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DaZion(m): 5:15pm On Feb 03, 2015
1/tanx..but tanx=sinx/cosx...Using quotient rule
U=sinx, V=cosx..
Du/dx=cosx, dv/dx=-sinx..
Dy/dx=Vdu/dx - Udv/dx
-----[all ova]V square
V square.
Dy/dx=cosx(cosx) - sinx(-sinx)...[all ova]Cosx square.
Cosx square + sinx square...[all ova] cosx square...
Dy/dx=-1/sinx square..
Dat's d answer..
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DaZion(m): 5:17pm On Feb 03, 2015
Y=2x(x-1)..Using product rule.
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by espn(m): 5:35pm On Feb 03, 2015
Using my rule. Nigeria - jonathan = progress and development = FEBUHARI.


Very simple equation.
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DanceVille: 5:39pm On Feb 03, 2015
Wow!..But, let me help u solve d rest..
From trig 1/sinx=cosecx.
Dy/dy=1/sinx square]1/sinx x 1/sinx=-(cosecx x cosecx).
Dy/dx=-cosecx square...
That's d final answer bro.
DaZion:
1/tanx..but tanx=sinx/cosx...Using quotient rule
U=sinx, V=cosx..
Du/dx=cosx, dv/dx=-sinx..
Dy/dx=Vdu/dx - Udv/dx
-----[all ova]V square
V square.
Dy/dx=cosx(cosx) - sinx(-sinx)...[all ova]Cosx square.
Cosx square + sinx square...[all ova] cosx square...
Dy/dx=-1/sinx square..
Dat's d answer..
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DanceVille: 5:44pm On Feb 03, 2015
DaZion:
Y=2x(x-1)..Using product rule.
dy/dx=Vdu/dx + Udv/dx
u=2x, v=x-1
du/dx=2 dv/dx=x
dy/dx=(x-1)2 +(2x)x
dy/dx=2x-2 +2xsquare
dy/dx=2xsquare + 2x -2.
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DanceVille: 5:48pm On Feb 03, 2015
2x- 4<-x+5..Find X.
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DaZion(m): 11:55pm On Feb 03, 2015
DanceVille:
2x- 4<-x+5..Find X.
Collect Like terms...
2x+x<5+4..
3x<9..
Divide thru by 3
x<3..
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DaZion(m): 11:59pm On Feb 03, 2015
DanceVille:
dy/dx=Vdu/dx + Udv/dx
u=2x, v=x-1
du/dx=2 dv/dx=x
dy/dx=(x-1)2 +(2x)x
dy/dx=2x-2 +2xsquare
dy/dx=2xsquare + 2x -2.
Nyc try Ville.
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DaZion(m): 12:04am On Feb 04, 2015
A man and his wife went to buy an article costing #400.The woman had 10% of the cost and the man 40% of the remainder.How much did they have altogether?..
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DanceVille: 12:11am On Feb 04, 2015
Wife profit on cost price:
10/100 x 400=40.
Remainder=400-40=360.
Man profit on remainder
40/100 x 360=144.
Altogether=144+40=184.

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Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DanceVille: 12:13am On Feb 04, 2015
If d 6th term of an A.P is 11 and d first term is 1.Find d common difference.
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DaZion(m): 12:21am On Feb 04, 2015
A+5d=11..
A=1.
1+5d=11
5d=11-1
5d=10
d=2
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DaZion(m): 12:25am On Feb 04, 2015
Y=4(3x-2)..Solve
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DaZion(m): 12:26am On Feb 04, 2015
Making sense!
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DanceVille: 7:18pm On Feb 08, 2015
4x3(3x-2)
12(3x-2).
DaZion:
Y=4(3x-2)..Solve
Re: Mathematics Chatroom: Drop Mathematics Equations And Lets Solve by DanceVille: 7:38pm On Feb 08, 2015
2x3=9
3x4=18
4x5=?
Solve.

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