1. The problem statement, all variables and given/known data given |+n> = cos (θ/2)|+z> + e^(i*phi)sin(θ/2)|-z> i'm asked to find out what <+z|+n>= 2. Relevant equations <+z|+z> = 1 <+z|-z> = 0 3. The attempt at a solution I am just unsure what <+z| is.. computing the inner product of the 2 quantum states to get the probability amplitude is not the issue. I know i need to use the <+z|+z> = 1, <+z|-z> = 0 to find it, but i'm just not sure how to approach it. i feel like i'm just missing something really simple, please any advice would be greatly appreciated.