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If acosA=bcosB, then either the triangle...

If `acosA=bcosB`, then either the triangle is isosceles or right angled.

A

Equilateral

B

Right anlged

C

Isosceles

D

Isosceles or right angled

Text Solution

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-TRIGNOMETRIC FUNCTIONS -Section-B (Objective Type Questions One option is correct)
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  2. Determine the smallest positive value of x ( in degrees ) for which ...

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  3. If acosA=bcosB, then either the triangle is isosceles or right angled.

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  4. In DeltaABC if (sinA)/(sinC)=(sin(A-B))/(sin(B-C)), then a^(2), b^(2)...

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  5. If (cos A)/(a) = (cos B)/(b) = (cos C)/(c) and the side a = 2, then fi...

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  6. If cot(A/2) = (b+c)/a, then triangleABC, is

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  11. If b + c = 3a, then find the value of cot.(B)/(2) cot.(C)/(2)

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  12. If, in a triangleABC, tan(A/2) =5/6 and tan(C/2) = 2/5, then:

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  13. If the area of triangleABC is triangle =a^(2) -(b-c)^(2), then: tanA =

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  14. If the angles of a triangle are 30^0a n d45^0 and the included side is...

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  15. If c^(2)=a^(2)+b^(2), 2s = a+b+c, then 4s(s-a)(s-b)(s-c)=

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  16. A triangle has its sides in the ratio 4:5:6, then the ratio of circumr...

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  17. In triangleABC, if ar (triangleABC)=8. Then, a^(2)sin(2B)+ b^(2)sin(2A...

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  18. In triangleABC, if a^(2)+b^(2)+c^(2)=ac+ab sqrt(3), then

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  19. In a triangle ABC, ab and c are the sides of the triangle satisfying t...

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  20. In triangleABC, which is not right angled, if p=sinA sinB sinC = and q...

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