0
I think that you're doing the same thing that I did for IB. Here's what I think you're asking for :
0, 2, 6, 12, 20, 30, 42...
c₁ = 0
c₂ = 2
c₃ = 6 (c₂ + 4 = 2 + 4 = 6)
c₄ = 12 (c₃ + 6 = 2 + 4 + 6 = 12)
c₅ = 20 (c₄ + 8 = 2 + 4 + 6 + 8 = 20)
c₆ = 2 + 4 + 6 + 8 + 10
etc...
dn = (n/2) <2c₁ + (n-1) 2>
dn = (n/2) <2 (2) + (n-1) 2>
dn = (n/2) (4 + 2n - 2)
dn = (n/2) (2 + 2n)
dn = (2n/2) + (2n²/2)
dn = n + n²
What else can I help you with?
Who invented surd's?
i did
Is root 2 a surd?
Yes the square root of 2 is a surd which is an irrational number that can't be expressed as a fraction.
What does surd mean in maths?
A surd is an irrational number that can't be expressed as a fraction as for example the square root of 2
Can you give one example for surd which is not irrational?
It is impossible to have a surd that is not irrational. Surds are defined to be an irrational number (square root of a number).
What is the concept of surd's?
The concept of surds, is that if a number isn't divisible, and has too many decimal places, it can be left as a surd, to make it less complicated to work out
What is an infinite surd?
Infinite surd is a term used in mathematics. The definition of an infinite surd is a never ending irrational number with an exact value that would be left in square root form.
What is the infinite surd of 2?
2
How do you find an infinite surd?
the same way you find chuck Norris
How do you simplify a surd in the form A square root B?
A surd in the form a√b cannot, in general, be simplified.
Is 5 a surd?
Yes it is a surd
What is a square root of surd?
If the value of the surd is positive, then it will be another surd. Otherwise it will be a complex number.
Cube root of 7 is a surd but is cube root of negative seven a surd?
I am pretty sure that the cube root of negative seven is a surd. I checked on the calculator.......and it showed a negative number.....??I think when it is not a surd...it's supposed to say error, so the number probably means that it is a surd..
Is there a law that you divide the surd index of a surd with a real no?
No. It is not a criminal or civil offence!
Who invented surd's?
i did
How do you solve an infinite surd?
If an infinite surd is like (√(6+√(6+√(6+√(6...),to solve it, follow these steps: Set x = √(6+√(6+√(6+√(6... therefore x2 = 6+√(6+√(6+√(6+√(6... therefore x2 = 6+x therefore 6+x-x2 = 0. Factorising the expression gives you (-x+3)(x+2)=0 Only the positive answer need be concerned with: -x+3=0 therefore -x = -3 therefore x = 3.
Is root 2 a surd?
Yes the square root of 2 is a surd which is an irrational number that can't be expressed as a fraction.
What is square root 78 then squared in surd form?
[square root (78)] squared = 78. There is not a surd from for an integer.
