Home
Class 12
MATHS
If A, B, C are in A.P., then correct rel...

If `A, B, C` are in `A.P.`, then correct relation is `cotA=(sinB+sinC)/(cosC+sinB)`

A

`cotA = (sinB+sinC)/(cosC + sinB)`

B

`cotB=(sinA-sinC)/(cosC-cosA)`

C

`tanA=(sinA+sinC)/(cosC-cosB)`

D

`tanB = (sinB-sinC)/(cosC-cosB)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • TRIGNOMETRIC FUNCTIONS

    AAKASH INSTITUTE|Exercise Section-C (Objective Type Questions More than one options are correct )|45 Videos
  • TRIGNOMETRIC FUNCTIONS

    AAKASH INSTITUTE|Exercise Section D (Linked Comprehension Type Questions)|24 Videos
  • TRIGNOMETRIC FUNCTIONS

    AAKASH INSTITUTE|Exercise Assignment Section-B (Objective Type Questions (One option is correct))|1 Videos
  • THREE DIMENSIONAL GEOMETRY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - J|10 Videos
  • VECTOR ALGEBRA

    AAKASH INSTITUTE|Exercise SECTION-J (Aakash Challengers Questions)|5 Videos

Similar Questions

Explore conceptually related problems

If A,B,C are in A.P., then correct relation is cot A=(sin B+sin C)/(cos C+sin B)

If A,B and C are in A.P then correct relation

In a DeltaABC, sin A sinB sinC is

If A,B,C, are the angles of a triangle such that cot(A/2)=3tan(C/2), then sinA ,sinB ,sinC are in (a)AdotPdot (b) GdotPdot (c) HdotPdot (d) none of these

If in aDeltaABC,sinA,sinb,sinC are in A.P ., then

If sinA/sinB=sin(A-C)/sin(C-B) then

In triangleABC, (sinB)/(sin(A+B)) =

AAKASH INSTITUTE-TRIGNOMETRIC FUNCTIONS -Section-B (Objective Type Questions One option is correct)
  1. let a=cosA+cosb-cos(A+B) and b=4sin(A/2)sin(B/2)cos((A+B)/2) Then a-b ...

    Text Solution

    |

  2. The value of tan^6(15^@)-15tan^4(15^@)+15tan^2(15^@)-3 is

    Text Solution

    |

  3. If A, B, C are in A.P., then correct relation is cotA=(sinB+sinC)/(co...

    Text Solution

    |

  4. cos(pi/14)+cos((3pi)/14)+cos((5pi)/14)=kcot(pi/14) then k is equal t...

    Text Solution

    |

  5. The minimum value of 8(cos2theta+cos theta) is equal to

    Text Solution

    |

  6. If 4nalpha =pi then cot alpha cot 2 alpha cot 3alpha ...cot (2n-1)alph...

    Text Solution

    |

  7. The value of tan7 1/2^@ equal to

    Text Solution

    |

  8. If tanalpha=sqrt(a), where a is a rational number whch is not a perfec...

    Text Solution

    |

  9. The value of 2tan18^@+3sec18^@-4cos18^@ is

    Text Solution

    |

  10. If tan^2alpha-2tan^2beta=1 then which of the following options is corr...

    Text Solution

    |

  11. The value of tan10^@tan50^@tan70^@ is

    Text Solution

    |

  12. If the arcs of the same length in two circles subtend angles 65 and 11...

    Text Solution

    |

  13. If cos2x+2cosx=1 then sin^2x(2-cos^2x) is

    Text Solution

    |

  14. The value of tan(theta/2)(1+sectheta)(1+sec2theta)+(1+sec2^2theta).......

    Text Solution

    |

  15. The value of [100(x-1)] is where [x] is the greatest integer less tha...

    Text Solution

    |

  16. If alpha+beta=pi/2a n dbeta+gamma=alpha, then tanalpha equals 2(tanbet...

    Text Solution

    |

  17. If f(alpha,beta)=cos^2alpha+sin^2alphacos2beta then which of the follo...

    Text Solution

    |

  18. Let f(x)=cos10x+cos8x+3cos4x+3cos2x and g(x)=8cosxcos^3(3x) then for a...

    Text Solution

    |

  19. Prove that sum(r=1)^n(1/(costheta+"cos"(2r+1)theta))=(sinntheta)/(2sin...

    Text Solution

    |

  20. Find the square root of 5-12i

    Text Solution

    |