Question

Plz Simplify using i. √-15√-4

Answer 1

Explanation:

`√(ab)=√(a)\cdot√(b)\\\\√(-15)\cdot√(-4)=√((-15)(-4))=√(60)=√((4)(15))=\sqrt4\cdot√(15)=2√(15)`

`\text{If the examples are separate.}\\\\√(-1)=i\\√(ab)=√(a)\cdot√(b)\\\\√(-15)=√((15)(-1))=√(15)\cdot√(-1)=√(15)\ i\\\\√(-4)=√((4)(-1))=\sqrt4\cdot√(-1)=2i`