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# This question is of Complex number and please give me solutions of que number 9 and 10 both.

8 months ago

Arun
25768 Points

Dear student

For question 9
Let z = x +iy

Hence sqrt (x²+y²) - x - iy = 1 +2i

On comparison
y = -2
And
x² +y²-x = 1
sqrt (x² +4 ) = 1 +x
x² +4 = x²+ 2x +1

2x =3
x = 3/2

Hence z = 3/2 -2i

Hope it helps

8 months ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions