binomial question (1 Viewer)

[cormglakes]

I know how to do question a but how do I do question b? I think Im pretty close - my integration result looks pretty similar to what ive proved but i dont know what to sub in; subbing in -1 or 1 should work but it doesnt work for me

 

[Qeru]

I know how to do question a but how do I do question b? I think Im pretty close - my integration result looks pretty similar to what ive proved but i dont know what to sub in; subbing in -1 or 1 should work but it doesnt work for meView attachment 30520

You sub in -1 can you write out what you got for the integration on the rhs?

 

[CM_Tutor]

Have you remembered the include and then seek the constant?

 

[liawfwF]

Consider subbing in x = 0 and b = -1 for the upper and lower bounds respectively