q8 hsc 2008 (1 Viewer)

[turnerloos]

can someone explain to me terry lee's working out for q8 hsc 2008 part b i)

 

[braintic]

The first line is simply adding up all the A_k's.

The second line is the result of using part (a), as directed by the question.

 

[turnerloos]

The first line is simply adding up all the A_k's.

The second line is the result of using part (a), as directed by the question.

rightt... part (a). yep thanks