Edexcel Core Maths C4 June 2009 Q1 : ExamSolutions

[ExamSolutions_Maths]

it's not 1/(4+x) but 1/root (4+x) . Basic laws of indices 1/x^n = x^-n

[nexete]

hey! The x^3 term is 5/1024! like so he reads it!!

[deggerzz]

sorry thought the root sign was a "d" dunno why, thank you!

[deggerzz]

how did u get 1/(4+x) = (4+x)^-1/2

[jasie]

at 4:43, you said 8 x 16 = 64, but its actually 128, so the term should've been 3x^2/128