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Earn +20 ptsQ: What is 3i in mathematics?
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What is the conjugate of -3i?
0 + 3i
What is (3i l)(3-I)?
(3i+l)(3-I)
What is the reciprocal of 1 plus 3i?
1/(1+ 3i)
Solve by factoring 3x2 equals -9?
3x2 = -9 (divide both sides by 3) x2 = -3 (x would have to be the square root of -3) x = ±√-3 x = ±√3i Since you want to solve by factoring: x2 = -3 add 3 to both sides x2 + 3 = 0 x2 - 3i2 = 0 x2 - (√3i)2 = 0 Factor: (x - √3i)(x + √3i) = 0 x - √3i = 0 or x + √3i = 0 x = √3i or x = -√3i
What is the additive inverse and the conjunction of NEGATIVE 2 plus 3i?
-2 + 3iThe additive inverse: -(-2 + 3i) = 2 - 3iThe conjugate: -2 - 3i
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