Asked by Rachel
4/-3i
why is the answer a positive number
4/-3i *3i/3i = 12i/9 = 4i/3 or 4/3i
why isn't it 12/-9i?
thank you
why is the answer a positive number
4/-3i *3i/3i = 12i/9 = 4i/3 or 4/3i
why isn't it 12/-9i?
thank you
Answers
Answered by
oobleck
it is 12/-9i
But if you want your answer to be a complex number a+bi then you realize that since
i^2 = -1
-i^2 = 1
1/i = -i
4/-3i = 4/-3 * 1/i = 4/-3 * -i = 4/3 i
But if you want your answer to be a complex number a+bi then you realize that since
i^2 = -1
-i^2 = 1
1/i = -i
4/-3i = 4/-3 * 1/i = 4/-3 * -i = 4/3 i
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