Anonymid
Anonymid
Mathematics
Answered
What is (i)(-7i) ? Simplify
Sagot :
Анонимid
Анонимid
[tex] i^{2} [/tex]=-1 so 7
Answer Link
AL2006id
AL2006id
If ' i ' is just any old number, then (i) x (-7i) = -7 i² .
But if ' i ' am √(-1) , then (-7) x (i²) = (-7) x (-1) and that's +7 .
Answer Link
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