( − 5 + 3 i ) ⋅ ( 1 − 2 i ) = − 5 + 10 i + 3 i − 6 i 2 = − 5 + 13 i − 6 ( − 1 ) = − 5 + 13 i + 6 = 1 + 13 i
i = − 1 → i 2 = − 1
( − 5 + 3 i ) ( 1 − 2 i ) = − 5 + 10 i + 3 i + 6 = 1 + 13 i
The simplification of the expression ( − 5 + 3 i ) ⋅ ( 1 − 2 i ) results in 1 + 13 i . This is achieved by carefully distributing and combining like terms while remembering that i 2 = − 1 .
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Penjelasan dengan langkah-langkah:5/9 + 24/108 = 60/108 + 24/108=84/108=21/27