simplify the number using the imaginary unit i √-28
8 answers
Find the square root of positive 28, then put the i next to it. For example the square root of -25 would be 5i because 5 is the square root of positive 25. Hope this helped!
√-28
= √4*√7*√-1
= 2√7 i
= √4*√7*√-1
= 2√7 i
1.D
2.B
3.B
4.C
5.A
6.C
2.B
3.B
4.C
5.A
6.C
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Algebra U6 L8 Complex Numbers
1. D, 2i√7
2. B
3. B, 11 - 2i
4. C, 20 - 4i
5. A, 31 + 1/26
6. C, 1 ± i√9
1. D, 2i√7
2. B
3. B, 11 - 2i
4. C, 20 - 4i
5. A, 31 + 1/26
6. C, 1 ± i√9
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2 answers