Question

State True or False with Brief Justification in support of your answer:
1) Im(1/-1-5i)=-5/26
2) For P(n):n²+n+4+41 is prime, P(41) is true.
3) If 2/3,k,5/8 are in A.P., the value of k is 1/5.
4) The multiplicative inverse of (4-3i) is (4/25-3/25)i.

Answer 1

1:f,2:t 3:f,4:f the answer is this