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Consider the curves on the Argand plane ...

Consider the curves on the Argand plane as
`" "{:(C_(1):arg(z)=pi/4","),(C_(2):arg(z)=(3pi)/(4)):}`
and `C_(3):arg(z-5-5i)=pi," where " i=sqrt(-1).`
`bb"Statement-1"` Area of the region bounded by the curves `C_(1),C_(2) " and " C_(3) " is " 25/2`
`bb"Statement-2"` The boundaries of `C_(1),C_(2) " and " C_(3)` constitute a right isosceles triangle.

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