Let w1 be the point obtained by the rotation of z1=5+4i about the origin through a right angle in the anticlockwise direction, and w2 be the point obtained by the rotation of z2=3+5i about the origin through a right angle in the clockwise direction. Then the principal argument w1−w2 is equal to
Held on 11 Apr 2023 · Verified 6 Jul 2026.
π−tan−198
−π+tan−1533
−π+tan−198
π−tan−1533
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