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`        This is a question based on complex number. It is taken from my rbse students advisor book of class 11th `
one year ago

Vikas TU
11770 Points
```							Hiii Let Z1 = x1 +iy1Z2 = x2 + iy2So, Z2 conjugte = x2-iy2arg (Z1Z2bar) = arg (x1x2 +x1y2 i +x2y1 i + y1y2)=> Tan inverse {( x1y2 + x2y1)/(x1x2 + y1y2)On RHS Tan inv (y1/x1) – Tan inv ( y2/x2)Apply the formula Tan inv (A ) – Tan inv (B) = Tan inv (A-B )/ (1+AB) LHS = RHS Hence prooved
```
one year ago
Saurabh Koranglekar
8387 Points
```							Dear studentArg( z1 z2) = arg (z1) + arg ( z2)Also arg ( z') = - arg ( z)Here replace z2 with z2'Arg ( z1 z2') = arg ( z1) - arg( z2)Regards
```
one year ago
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• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions