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Express the following in a+ib form (1/...

Express the following in `a+ib` form
`(1/5+i2/5)-(4+5/2i)`

Text Solution

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((1)/(5)+(i) (2)/(5))-(4+(i) (5)/(2))=(1)/(5)+(i) (2)/(5)-4-(i) (5)/(2)=(1)/(5)-4+(i)((2)/(5) -(5)/(2)).
.=(1-20)/(5)+(i)((4-25)/(10)) = (-19)/(5)+(i)((-21)/(10)) div (-19)/(5)-(21)/(10)i.
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