10. If z=5+(3-12)i, then zz is equal to ​

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10. If z=5+(3-12)i, then zz is equal to

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Eliza 2 weeks 2021-10-01T21:18:04+00:00 1 Answer 0 views 0

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    2021-10-01T21:19:45+00:00

    Answer:

    z=5+(3-12)i

    therefore z*z= (5+(3-12i)) * (5+(3-12i))

                        = 25 +5(3-12i) + 5(3-12i) + (3-12i)^2

                        = 25 + (15-60i) + (15-60i) +9 – 72i + 144

                        = 25 + 30 + 9 + 144 – 120i- 72i

                        = 208 – 192i

    Hence , answer is 208 – 192i or 208 – 192\sqrt{-1}

    PLEASE ADD AS BRAINLIEST IF IT IS CORRECT AND SORRY IF IT IS NOT CORRECT.

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