A2 binomial expansion helpWatch
So i then plugged 1/8 into my estimation expansion of 1-4x-3x²/2 , and multiplied the result by 3
(As you x3 to go from root3/3 to root3), giving 231/128.
However the MS says the answer's 128/77 - what have i done wrong? Thanks
- Study Helper
Substituting x=1/8 will give you
for some p,q that you've determined.
Now follow FlatearthWTF's suggestion.