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A quadrilateral ABCD is such that one ci...

A quadrilateral ABCD is such that one circle can be inscribed in it and another circle circumscribed about it, then `tan^2(A/2)`is equal to

A

bc/ad

B

ab/cd

C

ad-bc/ad+bc

D

a+c/b+d

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A
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PATHFINDER-SOLUTION OF TRIANGLE AND HEIGHT AND DISTANCE-QUESTION BANK
  1. For a triangle ABC, which of the following is true?

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  2. ABCD be a cycle quadrilateral inscribed in a circle of radius R. T...

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  3. A quadrilateral ABCD is such that one circle can be inscribed in it an...

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  4. ABCD be a cyclic quadrilateral inscribed in a circle of radius R. In p...

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  5. When any two sides and one of the opposite acute are given, under cert...

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  6. When any two sides and one of the opposite acute are given, under cert...

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  7. When any two sides and one of the opposite acute are given, under cert...

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  8. Match List - I with List-II

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  9. Match List - I with List-II

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  10. In a triangle ABC, right angled at A. The radius of the inscribed circ...

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  11. If in a DeltaABC, BC =5, CA=4, AB=3 and D, E are the point on BC such ...

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  12. Three circle touch one another externally. The tangents at their point...

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  13. If the radius of the circumcircle of a triangle is 12 and that of the ...

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  14. In a DeltaABC, the maximum value of 4((sumacos^2(A/2))/(a + b + c))mus...

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  15. The sides of a cyclic quadrilateral are in A.P., the shortest is 6 an...

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  16. In DeltaABC, r/r1=1/2, then the value of tan(A/2)(tan(B/2)+tan(C/2)) m...

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  17. In a triangle ABC, the incircle touches the sides BC, CA and AB at D,...

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  18. In triangle ABC, a=5,b=4,c=3. G is the centroid of triangle. If R1 b...

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  19. In the adjacent figure 'P' is any arbitrary interior point of the tria...

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  20. Prove that asin(B-C)+bsin(C-A)+csin(A-B)=0.

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