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If in a DeltaABC, cosA+2cosB+cosC=2,the...

If in a `DeltaABC`, cosA+2cosB+cosC=2,`then a,b,c are in

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PATHFINDER-SOLUTION OF TRIANGLE AND HEIGHT AND DISTANCE-QUESTION BANK
  1. If lambda be the perimeter of the DeltaABC. then bcos^2(c/2)+c cos^2(B...

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  2. If the area of a triangle ABC is given by Delta=a^2-(b-c)^2then tan(A...

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  3. If in a DeltaABC, cosA+2cosB+cosC=2,then a,b,c are in

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  4. If D is the mid point of side BC of a triangle ABCand AD is perpendicu...

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  5. If f,g,h are the internal bisectors of a DeltaABC then 1/fcos(A/2)+1/...

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  6. If a,b,c,d be the sides of a quadrilateral and g(x)=f[f{f(x)}], where ...

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  7. In aDeltaABC,sinA/sinC=sin(A-B)/sin(B-C)then

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  8. Let a,b,c be the sides of triangle whose perimeter is p and area is A,...

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  9. If in a DeltaABC, CD is the angle bisector of the angleABC, then CD is...

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  10. If A, A1,A2,A3 are the areas of the inscribed and escribed circles of ...

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  11. If A+B =pi/3 and cosA+cosB=1, then which of the following is/are true

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

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

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  14. If p1,p2,p3 are altitudes of a triangle ABC from the vertices A,B,C re...

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  15. If p1,p2,p3 are altitudes of a triangle ABC from the vertices A,B,C re...

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  16. Match List - I with List-II

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  17. Match List - I with List-II

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  18. In a Delta, (a+b+c)(b+c-a)=lambdabc, whenlambda inI, then greatest va...

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  19. In a Delta ABC then line joining the circumcentre to the incentre is p...

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  20. If in a DeltaABC, a=5, b=4 and cos(A-B)=31/32, then the third side c ...

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