Argument of complex number 1 + i:
Aπ/4 (angle in 1st quadrant; tan⁻¹(1) = π/4)
B0
Cπ/2
Dπ
Answer & Solution
Correct answer: A. π/4 (angle in 1st quadrant; tan⁻¹(1) = π/4)
For z = a + bi: arg = arctan(b/a) in correct quadrant. z = 1+i: 1st quadrant, |arg| = arctan(1/1) = π/4.
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