Math Chapter Wise Analytic Functions And Power Series English MCQ UP PCS (Pre) 1996 Q.If (1 + i tanα)1+itanβ has real values only, then one of them is given by: A2 sec (sec) α β Bsec (sec) β α C2 sec (sec) β α DNone of these Show answer Correct answer: 2 sec (sec) β α