Subtracting Complex Numbers: (11 - 8i) - (2 - 8i)
This article will guide you through the subtraction of two complex numbers: (11 - 8i) - (2 - 8i).
Understanding Complex Numbers
A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is the imaginary unit, defined as the square root of -1.
Subtracting Complex Numbers
To subtract complex numbers, we simply subtract the real parts and the imaginary parts separately.
Step-by-Step Solution
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Distribute the negative sign:
(11 - 8i) - (2 - 8i) = 11 - 8i - 2 + 8i
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Combine the real terms and the imaginary terms:
(11 - 2) + (-8i + 8i)
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Simplify the expression:
9 + 0i
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Final result:
(11 - 8i) - (2 - 8i) = 9
Conclusion
Therefore, the result of subtracting (2 - 8i) from (11 - 8i) is 9. Notice that the imaginary terms cancel out, leaving only a real number as the answer.