Mathematics - Properties of Triangle Question with Solution | TestHub

MathematicsProperties of Triangler1,r–R formula basedMedium2 minQB

MathematicsMediumsingle choice

In triangle ABC, find (r_1+r_3)/(1+cos B).

Answer:

Solution:

r_1+r_3=4R $cos^{2} (B /2)$ and 1+cos B= $2 co s^{2}$ (B/2). The quotient is 2R=abc/(2 $Δ$ ).

Stream:JEESubject:MathematicsTopic:Properties of TriangleSubtopic:r1,r–R formula based

⏱ 2mℹ️ Source: QB

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