answer all the questions and please make it clear which one is the correct answer

Question 1 (1 point} Let Z Z 1 '5. Then The modulus of Z is equal to \\/ and the argument of Z is equal to 7T/4. a__.::' The modulus of Z is equal to 2 and the argument of Z is equal to 7T/4. a___:3' The modulus of Z is equal to 2 and the argument of Z is equal to 7T/4. The modulus of Z is equal to \\/ and the argument of Z is equal to 37T/4. Question 2 (1 point} 1 1 | 2?? Suppose is an eigenvector of a real matrix A. Then 32' 1 I :l 1 1 21' is also an eigenvector of A. 1 3i I :l 1 1 2i 1 is also an eigenvector of A. 1 3i (\":1 None of the other three is true Question 3 (1 point) Suppose 2 = 1 - i. Then 2" is equal to O 16 O-16 Or = -16i O162 None of the other four Question 4 (1 point) If 1 + 2i is an eigenvalue of a real matrix A. then 1 - 2i is also an eigenvalue of A True False Question 5 (1 point) Let 2 = 1 + 2. Then | z) = V/2 and 2 = 1 - i. O |z| = 2 and 2 = 1 - i. O| z) = V2 and = = -1 - i. ONone of the other three