My AS Maths Doubts For Oct/Nov 2014

[Crimson-Saint]

so i made this thread to help me out with my doubts regarding maths

first doubt i have is...how do i solve these binomial questions in an easier and fast way?

s12/qp11

 

[Crimson-Saint]

and this one

 

[Crimson-Saint]

can anyone provide me with ASSISTANCE?

 

[Alex Irving]

solution to question 2