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If p+q=r and p=q=r then angle …

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If p+q=r and p=q=r then angle between p and q is
  • 1 answers

Anjan Karthi 1 year, 2 months ago

R = √p^2 + q^2 + 2pq cosπ. p^2 = p^2 + p^2 + 2p^2 cosπ. -p^2 = 2p^2 cosπ. cosπ = -1/2. π = 120°.//
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