railway DFCCIL Executive 2025 Mock Test Quantitative Aptitude Algebra Identities

p + q + r = 0 என்றால்,  \(\frac{{{{\rm{p}}^{\rm{2}}}}}{{{\rm{qr}}}}\,{\rm{ + }}\,\frac{{{{\rm{q}}^{\rm{2}}}}}{{{\rm{rp}}}}{\rm{ + }}\frac{{{{\rm{r}}^{\rm{2}}}}}{{{\rm{pq}}}}\) இன் மதிப்பு = ?

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3 pqr
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1
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3
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