Let $b, d>0$. The locus of all points $P(r, \theta)$ for which the line $P$ (where, $O$ is the origin) cuts the line $r \sin \theta=b$ in $Q$ such that $P Q=d$ is
Let $b, d>0$. The locus of all points $P(r, \theta)$ for which the line $P$ (where, $O$ is the origin) cuts the line $r \sin \theta=b$ in $Q$ such that $P Q=d$ is
- [KVPY 2014]
- A
$(r-d) \sin \theta=b$
- B
$(r \pm d) \sin \theta=b$
- C
$(r-d) \cos \theta=b$
- D
$(r \pm d) \cos \theta=b$
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