Argument of complex number 1 + i:
- π/4 (angle in 1st quadrant; tan⁻¹(1) = π/4)
- 0
- π/2
- π
Show answer and 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.