idrisadegbola40 idrisadegbola40
  • 10-12-2020
  • Mathematics
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-i+(7-5i)-3(2-3i)

Please i need this today ;(

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devishri1977
devishri1977 devishri1977
  • 10-12-2020

Answer:

3i + 1

Step-by-step explanation:

-i + (7 -5i) - 3(2 - 3i) = -i + 7 - 5i + 2*(-3) - 3i*(-3)

                              = -i + 7 - 5i - 6 + 9i

                              = -i - 5i + 9i + 7 - 6

                              = 3i + 1

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