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In triangle ABC, if sin Asin B=(ab)/c^2,...

In triangle ABC, if `sin Asin B=(ab)/c^2`, then the triangle is :

A

equilateral

B

isosceles

C

right angled

D

obtuse angled.

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
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  3. In triangle ABC, if sin Asin B=(ab)/c^2, then the triangle is :

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  4. The value of : (1+cos frac (pi)(6)) (1+cos frac (pi)(3))(1+cos frac (2...

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  6. The smallest value of 5 cos theta+ 12 is :

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  7. Smallest form of 2/(sqrt(2+sqrt(2+sqrt(2+2 cos4x)))) is :

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  8. If 5 cos 2 theta +2 cos^2 (theta/2)+1=0, when (0 ltthetalt pi), then t...

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  9. If aa n db are positive quantities such that a > b , the minimum value...

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  10. If A+B=45^@ then then (cot A- 1) (cot B- 1) is equal to :

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  11. The solution of the equation : [sin x + cos x]^(1+sin2x)=2, -pi lexle ...

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  12. If sin A- sqrt6 cos A= sqrt7 cosA, then: cosA+ sqrt6 sinA is equal to...

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  13. If tan A and tan B are the roots of abx^2- c^2x + ab= 0, where a, b, c...

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  14. In a Delta ABC, if a =3, b=4, c=5, then find the distance between its ...

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  17. From the top of a tower, the angle of depression of a point on the gro...

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  18. If alpha and beta satisfying 2 sec2 alpha = tan beta + cot beta, then ...

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  19. Value of 1 + cos 56^@+ cos 58^@ - cos 66^@ is:

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  20. Value of cos^2(A - B) + cos^2 B - 2 cos (A-B) cos Acos B is:

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