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OpenStudy (anonymous):
Write in standard form. A.) 3+√-9 B.) 42
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OpenStudy (mathstudent55):
Standard form is a + bi Also sqrt(-1) = i, so sqrt(-4) = sqrt(4) * sqrt(-1) = 2i
OpenStudy (anonymous):
I know this but I don't get how to put it in standard form
OpenStudy (mathstudent55):
In A) you have 3 + sqrt(-9). Using i, what is sqrt(-9) = ?
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