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OpenStudy (anonymous):
Simplify: iÖ-98 - Ö98
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OpenStudy (anonymous):
What was that?? Ha ha ha..
OpenStudy (anonymous):
Ö what is this?
OpenStudy (anonymous):
i√-98 - √98
OpenStudy (anonymous):
Square root symbol
OpenStudy (anonymous):
√-98=i√98 use this
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OpenStudy (anonymous):
Use this also: \[\sqrt{98} = 7\sqrt{2}\]
OpenStudy (anonymous):
so it becomes: i(i√98) -√98=-2√98=-14√2
OpenStudy (anonymous):
remmember that i*i=-1
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