Question

use binomial theorem to expand and simplify (4a-b)^5

Answer 1

(4a-b)^5=(4a)^5-5C1(4a)^4.(b)+5C2(4a)^3(b)^2-5C3(4a)^2(b)^3
+5C4(4a*B^4)-5C5b^5

Answer 2

pascal's triangle is more fun

Answer 3

myininaya....actually the pascal's triangle is the values of nCr..

Answer 4

yes i know lol

Answer 5

you find the lines of the pascal triangle without knowing what C means

Answer 6

except for (x+y)^n then you would need that C junk

Answer 7

so i think it's the better way to approach in a way how do we find binomial series rather that to remember the large values...