defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Complex Numbers Properties of Complex Numbers
Let z1 and z2 be two complex number such that z1 + z2 = 5 and \(\rm z_1^3+z_2^3=20+15i\). Then \(\rm |z_1^4+z_2^4|\) equals.
1
30√3
2
75
3
\(15\sqrt{15}\)
4
25√3