The complex number a is given by a =-2 + 5i. i) Write down the complex conjugate a*. a +a* ii) Find in the form a + bi.

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City Engineers CM1-CM3 exam 2021.pdf
7)
The complex number a is given by a =-2 + 5i.
(i) Write down the complex conjugate a*.
[1]
a +a*
(ii) Find
in the form a+ bi.
[3]
8)
Transcribed Image Text:City Engineers CM1-CM3 exam 2021.pdf 7) The complex number a is given by a =-2 + 5i. (i) Write down the complex conjugate a*. [1] a +a* (ii) Find in the form a+ bi. [3] 8)
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