Straight Lines5

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ABC is a right angled isosceles triangle, right angled at A(2,1).If the equation of side BC is 2x+y=3, then find the combined equation of lines AB and AC.

Ans-- 3x²-3y²-8xy-4x+22y-7=0

#Mathematics #Co-ordinate Geometry

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Kalyan Pilla ·2010-01-18 17:56:27

This quetion has 3 answers

Each of the triangles ABC, ABD, ACD, represent the required triangle......

slope of BC= -2

slope of AB=3
slope of AD=1/2
slope of AC=-1/3

eqn of AB is y-3x+5=0
eqn of AD is 2y-x=0
eqn of AC is 3y+x-5=0

Multiply, two lines at a time for the three answers

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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

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Straight Lines5

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