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Question

A particle starts moving from a point P on the curve | z - 3 - 4i| = 5, where |z| is maximum. From P it moves through an angle tan1(34) in in anticlockwise direction and reaches the point Q. From Q it comes down parallel to imaginary axis by 2 units and reaches the point R. Then

A
R=(3,9)
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B
R=(3,7)
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C
Area of Δ PQR = 3 sq. Units
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D
Δ PQR is right angled
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Solution

The correct options are
B R=(3,7)
C Area of Δ PQR = 3 sq. Units
|z - 3 - 4i| = 5 represent a circle (x3)2+(y4)2=25, which passes through O, P is the other end of diameter through 'O'
P = (6, 8)
Q is vertically above C(3, 4)
Q = (3, 9)
R = (3, 7)

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