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Divide the following complex numbers: ((3+i))/((2-3i))

a. 9/13 + 11/13
b. 3/13 + 11/13
c. -3/5 - 11/5
d. -9/5 - 11/5

1 Answer

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Final answer:

The division of the complex numbers (3+i)/(2-3i) results in 3/13 + 11/13 i when multiplying by the conjugate of the denominator (2+3i) and simplifying.

Step-by-step explanation:

To divide the complex numbers (3+i)/(2-3i), we need to multiply by the conjugate of the denominator to remove the imaginary part from the denominator. The conjugate of (2-3i) is (2+3i). Now, multiply both the numerator and the denominator by this conjugate:

((3+i)(2+3i)) / ((2-3i)(2+3i))

Expanding the numerator gives us:

(3×2) + (3×3i) + (i×2) + (i×3i) = (6 + 9i + 2i - 3), since i^2 = -1.

So, the numerator simplifies to:

(6 - 3) + (9i + 2i) = 3 + 11i.

The denominator, when expanded, is:

(2×2) + (2×3i) - (3i×2) - (3i×3i) = 4 - 6i + 6i - 9i^2

Since i^2 = -1, this simplifies to:

4 + 9 = 13.

Therefore, the division yields:

(3 + 11i) / 13, which separates into:

3/13 + 11/13 i.

So the result of the division is 3/13 + 11/13 i.

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