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Multiple Choice
Identify the real and imaginary parts of each complex number.
A
a=3,b=23
B
a=3,b=2
C
a=23,b=3
D
a=3,b=3
Verified step by step guidance
1
Recall that a complex number is generally written in the form \(a + bi\), where \(a\) is the real part and \(b\) is the coefficient of the imaginary part \(i\).
Identify the real part \(a\) by looking at the term without the imaginary unit \(i\). In the expression \$3 + 2i\sqrt{3}\(, the real part is the constant term \)3$.
Identify the imaginary part coefficient \(b\) by looking at the term multiplied by \(i\). Here, the imaginary part is \$2i\sqrt{3}\(, so the coefficient \)b\( is \)2\sqrt{3}$.
Write down the real part and the imaginary part coefficient separately: \(a = 3\) and \(b = 2\sqrt{3}\).
Thus, the complex number \$3 + 2i\sqrt{3}\( has a real part \)3\( and an imaginary part coefficient \)2\sqrt{3}$.