easy

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In triangle ABC, D is a point on AB and E is a point on AC such that BE and CD are bisectors of âˆ B and âˆ C respectively. Let Q,M and N be the feet of perpendiculars from the midpoint P of DE onto BC, AB and AC, respectively. Prove that PQ = PM + PN.

edit : its not that easy!!

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Mani Pal Singh ·2009-03-15 09:26:30

ISKO PINK KAR KE CHOODNE KA KYA MATLAB HAI[7]

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Basic Integral Calculus Operators Symbols Matrix Cases

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° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω