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Trigonometry Properties of Triangles

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If p1, p2. p3 are altitudes of a triangle ABC from the vertices A, B, C and Δ the area of the triangle, then p₁^-2 + p₂^-2 + p₃^-2 is equal to

A. (a + b + c)/Δ

B. (a² + b² + c²)/4Δ²

C. (a² + b² + c²)/Δ²

D. (a² + b² + c²)/4Δ

E. None of the above

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Correct choice: B

Explanation:

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Eamcet Mathematics Trigonometry Properties of Triangles

Eamcet Mathematics
Trigonometry Properties of Triangles