What is the modulus of the complex number ?
Answer and explanation
Correct answer: A. 5
- Step 1: The modulus is |z| = sqrt(a^2 + b^2).
- Step 2: |z| = sqrt(9 + 16) = sqrt(25) = 5.
Answer
5.
Why not the others: 7 adds the real and imaginary parts; 25 is the squared modulus; the last value subtracts the squares.
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