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If z = 2 + 2i, find the argument of z.
If z = 2 + 2i, find the argument of z.
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Practice Questions
1 question
Q1
If z = 2 + 2i, find the argument of z.
π/4
π/2
3π/4
0
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The argument is given by tan^(-1)(2/2) = tan^(-1)(1) = π/4.
Questions & Step-by-step Solutions
1 item
Q
Q: If z = 2 + 2i, find the argument of z.
Solution:
The argument is given by tan^(-1)(2/2) = tan^(-1)(1) = π/4.
Steps: 9
Show Steps
Step 1: Identify the complex number z, which is given as z = 2 + 2i.
Step 2: Recognize that the argument of a complex number is the angle it makes with the positive x-axis in the complex plane.
Step 3: The real part of z is 2 and the imaginary part is also 2.
Step 4: Use the formula for the argument, which is given by the tangent of the angle: tan(θ) = imaginary part / real part.
Step 5: Substitute the values: tan(θ) = 2 / 2.
Step 6: Simplify the fraction: tan(θ) = 1.
Step 7: Find the angle whose tangent is 1. This angle is θ = tan^(-1)(1).
Step 8: The angle θ = π/4 radians (or 45 degrees).
Step 9: Therefore, the argument of z is π/4.
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