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i want solution of question number 26 .please help me to solv.

i want solution of question number 26 .please help me to solv.

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Grade:11

2 Answers

Arun
25750 Points
3 years ago
Dear student
 
Let z = x +iy
 
Hence x +iy + √(x²+y²) = 1 +7i
 
Hence y = 7
And x + √(x² +49) = 1
x² +49 = x²+1 -2x
2x = -48
x = -24
 
Hence z = -24 +7i
 
Hence |z|² = 24² +7² = 625
 
Hence option A is correct
Vikas TU
14149 Points
3 years ago
Dear student 
Please ask single question in a thread , 
It will be easier for us to ans. 
Good Luck 
Cheers 

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