Can anyone help on proving the variance of an n-deferred whole life annuity due?
all i have is http://img132.imageshack.us/i/89300735.jpg/
if i expand the middle bit, i only get the last bit of the final answer :S
also i tried writing it as insurance terms... still no luck
and the final answer should be http://img860.imageshack.us/i/28521984.jpg/