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The area of an acute triangle ABC is Δ, the area of its pedal triangle is 'p', where cosB=2pΔ and sinB=2√3pΔ. The value of 8(cos2AcosB+cos2C) is |
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Answer» The area of an acute triangle ABC is Δ, the area of its pedal triangle is 'p', where cosB=2pΔ and sinB=2√3pΔ. The value of 8(cos2AcosB+cos2C) is |
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