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A request

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astarmathsandphysics:
There are 2 more. I only gave the one for n a positive integer.

Ghost Of Highbury:
yaa..there is a binomial theorm in math too

here in india..its hardcore math for the cbse..
i turned to igcse after my grade 7..
but well!!...add. math covers much of the portion

(a+b)^n = a^n + nC1 a ^n-1 b + nC2a^n-2 b^2 +.............b^n

Ghost Of Highbury:
we learn binomial theorm in additional math
permutation and combination too!!
quite tricky but easy too

Ghost Of Highbury:
the power is usually low in additional math for binomial theorm as in  1<= n <= 10
some of us who find combination method difficult use the triangle law
i don't remember the name for this
its like this

             1    1
          1    2     1
        1   3     3      1
     1    4   6      4     1

and so on ...keep on adding the middle numbers of the previous row..to get the next one..

for example if they say to (a+b)^4 --> the power is 4 soo chk out d pattern in the triangle
its 1 4 6 4 1
these numbers will act as coeffecients..

therefore (a+b)^4 = (a+b)4 = a4 + 4a3b  +   6a2b2   +   4ab3    +    b4

Ghost Of Highbury:
i don't know how to nake it superscript...lol...haha

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