Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Complex Numbers Properties of Complex Numbers
Find the modulus of a complex number z = (3 + 4i)(4 - 5i).
1
5√41
2
41√5
3
10√41
4
More than one of the above
5
None of the above