Home
Class 12
MATHS
In a /\ABC, if A,B,C are in A.P., then...

In a `/_\ABC`, if A,B,C are in A.P.,
then: `a/c (sin 2C) + c/a (sin 2A) = ....`

A

`1/2`

B

`(sqrt3)/2`

C

`1`

D

`sqrt(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE|152 Videos
  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE (B) Properties of triangles|27 Videos
  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP: CHAPTER 3-3.3|13 Videos
  • THREE DIMENSIONAL GEOMETRY

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|39 Videos
  • VECTORS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|20 Videos

Similar Questions

Explore conceptually related problems

In a Delta ABC , if A,B,C are in AP, then (a)/(c) sin2C+(c)/(a)(sin2A) is equal to

In a triangle ABC, if a, b, c are in A.P. and (b)/(c) sin 2C + (c)/(b) sin 2B + (b)/(a) sin 2A + (a)/(b) sin 2B = 2 , then find the value of sin B

In Delta ABC , if : a^(2), b^(2), c^(2) are in A.P., then : (sin 3B) : (sin B) =

If A,B,C are in A.P then (sin A-sin C)/(cos C-cos A)=

If in a Delta ABC,sin A,sin B,sin C are in AP then

If in a !ABC , sin A, sin B and sin C are in A.P, then

If sides a,b,c of Delta ABC are in A.P., then : sin (A/2) cdot sin (C/2)/(sin (B/2) =

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

In triangle ABC if a, b, c are in A.P., then the value of (sin.(A)/(2)sin.(C)/(2))/(sin.(B)/(2)) =

In Delta ABC, if a,b,c are in A.P.then (2sin((A)/(2))sin((C)/(2)))/(sin((B)/(2)))=

MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-HARDER SOLVED EXAMPLES
  1. If the radius of the circum-circle of an isosceles triangle PQR is equ...

    Text Solution

    |

  2. In /\ABC, if 3 a=b + c, then cot(B/2) \ cot(C/2) =

    Text Solution

    |

  3. In a /\ABC, if A,B,C are in A.P., then: a/c (sin 2C) + c/a (sin 2A) ...

    Text Solution

    |

  4. If cos^(-1) x + cos^(-1) y + cos^(-1) z = pi" , prove that " x^(2) + ...

    Text Solution

    |

  5. If cos^(-1)(x/a) + cos^(-1) (y/b) = alpha show that : (x^2)/(a^2) - (...

    Text Solution

    |

  6. Prove that tan{(pi)/4 + 1/2 Cos^(-1)((a)/(b))}+tan{((pi)/4-1/2 Cos^(-1...

    Text Solution

    |

  7. If 0<a1<a2<ddot<an , then prove that tan^(-1)((a1x-y)/(x+a1y))+tan^(-1...

    Text Solution

    |

  8. If a(1), a(2), a(3),...., a(n) is an A.P. with common difference d, th...

    Text Solution

    |

  9. If alpha = tan^(-1) ((xsqrt(3))/(2y - x)) and beta = tan^(-1) ((2x - y...

    Text Solution

    |

  10. Find the period of the function f(x) = tan (3x + 5).

    Text Solution

    |

  11. Find the period of (i) sin 3x + cos 3x

    Text Solution

    |

  12. Find the period of sin 5x - cos 5x.

    Text Solution

    |

  13. Find the period of the function f(x) = sin((pi x)/3) + cos ((pi x)/2...

    Text Solution

    |

  14. If m tan(alpha-theta)/( cos^2 theta) = n (tan theta)/ (cos^2 (alpha -...

    Text Solution

    |

  15. Show that cos^(-1) ((cos alpha+cos beta)/(1+cosalpha cosbeta))=2 tan^(...

    Text Solution

    |

  16. tan[2.tan^(-1)(1/5)- pi/4]=

    Text Solution

    |

  17. tan [cos^(-1)((4)/(5)) +tan ^(-1)((2)/(3))]=....

    Text Solution

    |

  18. Solution of the equation tan^(-1)(2x) + tan^(-1)(3x) = pi/4

    Text Solution

    |

  19. If sin^(-1)(x/5) + cosec^(-1) (5/4) = pi/2 , then the value of x is

    Text Solution

    |

  20. cot[csc^(-1)(5/3) + tan^(-1)(2/3)] = ....

    Text Solution

    |