Question

Write the conjugates of the following
complex numbers
i) 3+i ii) 3- iii) - √5-√7i
iv) - √-5 v)5i vi) √5-i
vii) √2+√3iviii) cos+ i sino​

Answer 1

☆Answer:-

=> (1) = 3+i mod of z = mod of 3+i = 3-i.[/tex]

$= > (2) = 3-i</p><p> mod of z = mod of 3-i</p><p> = 3+i$

$= > (3) = - \sqrt{5} - \sqrt{7} i \\ \: \: = \sqrt{5} + \sqrt{7}$

$= > (4) = - \sqrt{ - 5} \\ \: = 0 - \sqrt{5i} \\ z = + \sqrt{5} i$

$= > (5) = - 5i$

$= > \sqrt{5} + i$

$= > (6) = \sqrt{2} - \sqrt{3} i$

$= > (7) = \cos( \alpha ) - i \sin( \alpha )$

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