the value of 169e^(pi+sin(inverse)(12/13)+cos(inverse)(5/13))
i know de moivres theorem cosa+isina
but how to proceed with inverses
If that was supposed to be
then use the fact that
Of course, . You should recognize that refers to an angle in a right triangle with "opposite side" 5 and "hypotenuse" 13. What is the length of the other leg? So what are the sine and cosine?