x-and-y-are-real-value-and-x-iy-5-3-4i-find-x-and-y-i-1-

Question Number 159453 by Avijit007 last updated on 17/Nov/21

x a n d y a r e r e a l v a l u e a n d

x + iy = \frac{5}{- 3 + 4 i} f i n d x a n d y . (i = \sqrt{- 1})

Commented by Avijit007 last updated on 17/Nov/21

h e l p .

Answered by Ar Brandon last updated on 17/Nov/21

x + i y = \frac{5}{- 3 + 4 i} \times \frac{- 3 - 4 i}{- 3 - 4 i}

= \frac{- 15 - 20 i}{9 + 16} = - (\frac{3}{5} + \frac{4}{5} i)

x = - \frac{3}{5}, y = - \frac{4}{5}

Commented by Avijit007 last updated on 17/Nov/21

t h a n k y o u :)

Commented by Ar Brandon last updated on 17/Nov/21

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