A complex number has modulus √2 and argument −15°. The complex number is
University of Ilorin MTH101 2026-exam past question
- √2(cos 15° − i sin 15°)
- √2(−cos 15° + i sin 15°)
- √2(cos 15° + i sin 15°)
- √2(cos(−15°) − i sin(−15°))
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