Help pls √-4 - √-25 Express complex numbers in terms of i

asked Dec 20, 2019 39.6k views

4 votes

Help pls √-4 - √-25
Express complex numbers in terms of i

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6 votes

that would become 2i minus 5i which gives you negative 3i

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5 votes

$i=√(-1)\\\\√(-4)=√((4)(-1))=\sqrt4\cdot√(-1)=2i\\\\√(-25)=√((25)(-1))=√(25)\cdot√(-1)=5i\\\\√(-4)-√(-25)=2i-5i=-3i$

Facyo Kouch answered Dec 26, 2019

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