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In Delta ABC, if C=90^@then (a^2+b^2)/(a...

In `Delta ABC, if C=90^@`then `(a^2+b^2)/(a^2-b^2)sin (A-B)`=

A

1

B

2

C

3

D

4

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AAKASH SERIES-PROPERTIES OF TRIANGLES-PRACTICE SHEET (EXERCISE-I) (LEVEL-I) (Straight- Objective Type Questions)
  1. In Delta ABC , if a= sqrt3 + 1, b = 2, B = 45 ^(@) , then A =

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  2. In Delta ABC, if Sin A and sin B are the roots of the equation c^2x^2-...

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  3. In Delta ABC, if C=90^@then (a^2+b^2)/(a^2-b^2)sin (A-B)=

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  4. Prove that (1+cos(A-B)cosC)/(1+cos(A-C)cosB)=(a^(2)+b^(2))/(a^(2)+c^(2...

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  5. In Delta ABC " if " 3 sin A = 6 sin B = 2 sqrt3 sin C , " then " a...

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  6. In Delta ABC , (a^(2) - b^(2) -c^(2) ) tan A + (a^(2) -b^(2) +c^(2...

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  7. If in a triangle ABC, 4 sin A= 4 sin B=3 sin C, the cos C=

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  8. In a triangle ABC, if (sqrt(3)-1)a=2b,A=3B then angleC is

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  9. In DetlaABC, if (SinA)/(SinC)=(Sin(A-B))/(Sin(B-C)) then a^(2),b^(2)c^...

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  10. The radius of the circumcircle of an isosceles triangle POR is equal t...

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  11. If the angles of a right angled triangles are in A.P. Then the side...

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  12. a^(2)-b^(2)=bc rArr A:B

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  13. In Delta ABC, sum a^2 (cos^2 B-cos^2 C)=

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  14. In a, Delta^("le") ABC A: B:C= 1:2:4 then ((a^(2)-b^(2))(b^(2)-c^(2))(...

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  15. If two angles of a DeltaABC are 45^(@) and 60^(@), then the ratio of t...

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  16. The angles of a triangle are in the ratio 3:5:10. Then the ratio of th...

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  17. In DeltaABC, if a,b,c are in H.P then "Sin"^(2)(A)/(2), "Sin"^(2)(B)/(...

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  18. In a triangle ABC if (cos A)/a=(cos B)/b= (cos C)/c, then Delta ABC is

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  19. If the angles of a triangle are in A.P., a=2 c= 4 , then b=

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  20. IF the angles of triangle are in the ratio 1:1:4 then the ratio of the...

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