Question:medium

Express the given complex number in the form \(a + ib: (\dfrac{1}{5}+i\dfrac{2}{5})-(4+i\dfrac{5}{2})\)

 

 

Updated On: Jan 27, 2026
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Solution and Explanation

\((\dfrac{1}{5}+i\dfrac{2}{5})-(4+i\dfrac{5}{2})\)

\(=(\dfrac{1}{5}-4)+i(\dfrac{2}{5})-\dfrac{5}{2})\)

\(=-\dfrac{19}{5}+i(\dfrac{-21}{10})\)

\(=-\dfrac{19}{5}-\dfrac{21}{10}i\)  (Ans.)

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