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In a DeltaABC, 2cosA=sinB/sinCand 2^(tan...

In a `DeltaABC,` 2cosA=sinB/sinCand `2^(tan^2B)` is a solution of equlation `x^2-9x+8=0,` then DeltaABC is

A

equilateral

B

isosceles

C

scalene

D

right angled

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The correct Answer is:
A
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PATHFINDER-SOLUTION OF TRIANGLE AND HEIGHT AND DISTANCE-QUESTION BANK
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  2. If in a DeltaABC, r1r2+r2r3+r3r1 is equal to (where r1,r2,r3 are the...

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  3. In a DeltaABC, 2cosA=sinB/sinCand 2^(tan^2B) is a solution of equlatio...

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  4. The area of the circle and the area of a regular polygon inscribed th...

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  5. If there are only two linear function f and g which map [1.2] on [4,6]...

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  6. If A ,B,C,D are the angle of quadrilateral, then (sumtanA)/(sumcotA)is...

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  7. If Delta be the area of a triangle ABC and length of its two sides are...

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  8. Which of the following pieces of data does not uniquely determine acut...

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  9. In a triangle ABC, (a+b+c)(b+c-a)=kbc if

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  10. If cosA/a=cosB/b=cosC/cand the side a=2, then area of triangle is

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  11. If lambda be the perimeter of the DeltaABC. then bcos^2(c/2)+c cos^2(B...

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

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

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

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

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

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

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

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

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

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