Q7. If z1 = √-36, z2 = √-25, and z3 = √-16, what is the sum of z1, z2, and z3?Mathematics — NUST Mock By IBAGRADS 1 — Question 7 of 200A. 15B. 15iC. -15iD. -15Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →