Question

Simplify. 1/2-i plz help!

Answer 1

so its .5-i. i dont think you cant simplify that unless you want to do (1/2)-(sqrt(-1))

Answer 2

Multiply numerator and denominator by the conjugate of 2-i which is 2+i

Answer 3

\[\frac{1}{2-i}*\frac{2+i}{2+i}\]
\[\frac{2+i}{2+1}\]
\[\frac{2+i}{3}\]
\[\frac{2}{3}+\frac{1}{3}i\]

Answer 4

\[(2-i)(2+i)\]
\[4+2i-2i-i^2\]
\[i^2=-1\]
\[4-(-1)\]
\[4+1=5\]

Answer 5

Sorry
\[\frac{2}{5}+\frac{1}{5}i\]

Answer 6

Or is the question: \[\frac{1}{2}-i\] ?