Relations and Functions

Relations and Functions

Question

Express each  of the complex number  given in the  Excercise 1 to 10 in the form a + ib.

space space space space space space space space space space space space space left parenthesis 5 straight i right parenthesis open parentheses fraction numerator negative 3 over denominator 5 end fraction straight i close parentheses

Answer
space space space space space space space space space space space space space space space space space space space space space space space space space space space left parenthesis 5 straight i right parenthesis open parentheses fraction numerator negative 3 over denominator 5 end fraction straight i close parentheses    = space space space space space space space space minus 5 straight x 3 over 5       ( use i = -1)

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