umms polynomials (1 Viewer)

[fullonoob]

Show that if cot @ = x+1 then ((x+a)^n - (x+B)^n)/ a-B = sin n@/ sin^n @
a = 1+ i B = 1 - i

I know you do something with De Moivres.. after that im kinda lost so sleepy
Btw just wondering how you write the integrals, differentiation sign, theta etc. on bos - basically the maths working out

Thanks much

 

[Trebla]