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Express of the complex number in the for...

Express of the complex number in the form `a + i b`.`(1/5+i2/5)-(4+i5/2)`

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The correct Answer is:
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` ((1)/(5)+i(2)/(5))-(4+ i(5)/(2))`
`" "=(1)/(5)+i*(2)/(5)-4-i(5)/(2)`
`" "=(-4+(1)/(5))+i((2)/(5)-(5)/(2))`
`" "=(-19)/(5)+i((4-25)/(10))`
`" "=-(19)/(5)-(21)/(10)i`
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