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If (sin 3B)/(sinB)=((a^(2)-c^(2))/(2ac))...

If `(sin 3B)/(sinB)=((a^(2)-c^(2))/(2ac))` then `a^(2),b^(2),c^(2)` are in

A

A.P

B

G.P

C

H.P

D

A.G..P

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AAKASH SERIES-PROPERTIES OF TRIANGLES-LECTURE SHEET EXERCISE - I ( Straight Objective Type Questions )
  1. If the sides a, b, c of a triangle are in G..P. and largest angle exce...

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  2. If in a triangle ABC sines of angles A and B satisfy the equation 4x^(...

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  3. If (sin 3B)/(sinB)=((a^(2)-c^(2))/(2ac)) then a^(2),b^(2),c^(2) are in

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  4. In a triangle ABC if (a^(2) + b^(2))/(a^(2) - b^(2)) sin (A - B) = 1 a...

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  5. In triangle ABC, AD and BE are the medians drawn through the angular p...

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  6. In a Delta^(le) ABC the bisectors of angleB and angleC meet AC and AB...

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  7. In DeltaABC, AD is the altitude from A, if b gt c, C=23^(0), AD=(abc)/...

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  8. The base of a triangle is divided into 3-equal part. If t(1), t(2), t(...

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  9. If O is the point inside the triangle ABC such that lfloor OBC = A//2,...

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  10. In a triangle ABC, a similar triangle A'B'C' is inscribed so that B'C'...

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  11. In Delta ABC . P is an interior such that angle PAB = 10^(@) , angle P...

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  12. In Delta ABC , " if " angle C = 3 angle A, BC = 27 , and AB = 48. The...

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  13. In a triangle ABC, if A,B, C are in A.P and b:c =sqrt3:sqrt2, then

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  14. In Delta ABC, if cos A cos B+ sin A sin B sin C=1, then a:b:c=

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  15. In triangle ABC , if cot A , cot B , cot C are in A.P., then a^(2), b...

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  16. Which of the following does not exist ?

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  17. If the angles A, B and C of a triangle are in an arithmetic progressio...

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  18. If a, b and c represent the lengths of sides of a triangle, then the p...

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  19. In Delta ABC , angle A = 90^(@) and AD is an altitude . Complete the r...

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  20. ABC is a triangle with angle B greater than angle C . D and E are poin...

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