Let P=(1xp,p),Q=(1xq,q) and R=(1xr,r), where xk≠0 denotes the kthter – InterviewSolution

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1.	Let P=(1xp,p),Q=(1xq,q) and R=(1xr,r), where xk≠0 denotes the kthterm of an H.P. for k∈N. If the area formed by the points P,Q and R is λpqr sq. units, then the value of λ is
Answer» Let $P = (\frac{1}{x_{p}}, p), Q = (\frac{1}{x_{q}}, q)$ and $R = (\frac{1}{x_{r}}, r)$ , where $x_{k} \neq 0$ denotes the $k^{t h}$ term of an H.P. for $k \in N$ . If the area formed by the points $P, Q$ and $R$ is $λ p q r$ sq. units, then the value of $λ$ is

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