Write in standard form. a + bi .
| Perform
indicated operation. Write in standard form. a + bi . |
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Solve |
Step |
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Multiply the numerator and the denominator by 3 - 4i (complex conjugate) |
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(4
- i)(4 + i) = 42 + 4i - 4i - i2
= 16 -1(-1) = 16 + 1 = 17 |
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NOTE: |
(a + bi)(a - bi) = a2 + b2 Try it! |
