InterviewSolution
`(n PI - ((pi)/(4)))/(1 + (-1)^(n)(2))``(n pi + ((pi)/(4)))/(1 + (-1)^(n)(2))``(n pi + ((pi)/(4)))/(1 - (-1)^(n)(2))``(n pi - ((pi)/(4)))/(1 - (-1)^(n)(2))`
Your experience on this site will be improved by allowing cookies. Read Cookie Policy