Home
Class 11
MATHS
If A,B,C are in A.P then (sinA-sinC)/(co...

If `A,B,C` are in A.P then `(sinA-sinC)/(cosC-cosA)=`

A

tan A

B

cot A

C

tan B

D

cot B

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MCQs|175 Videos

  • STRAIGHT LINE

    MARVEL PUBLICATION|Exercise MISCELLANEOUS MCQS|160 Videos

  • TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES AND FACTORIZATION FORMULAE

    MARVEL PUBLICATION|Exercise MCQs|101 Videos

Similar Questions

Explore conceptually related problems

(1+sinA-cosA)/(1+sinA+cosA)=

If A+B+C=180^(@) , then (sin2A+sin2B+sin2C)/(cosA+cosB+cosC-1) is equal to

If A+C=2B, then (cosC-cosA)/(sinA-sinC)=

If A+B+C=pi , then (cosA)/(sinBsinC)+(cosB)/(sinCsinA)+(cosC)/(sinAsinB)=?

If in a /_\ ABC the altitude from the vertices A,B,C on opposite side are in H.P. then sinA,sinB,sinC are in (A) H.P. (B) Arithmetico-Geometric progression (C) A.P. (D) G.P.

If cotA=(4)/(5) , then ((sinA+cosA))/((sinA-cosA))=?

Prove that: (1+sinA-cosA)/(1+sinA+cosA)=tanA/2

MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MCQs
  1. If : a * cos A-b * sin A=c, "then" : a * sin A +b* cos A=A)sqrt(a^(2)...

    Text Solution

    |

  2. if tanx=b/a then sqrt((a+b)/(a-b))+sqrt((a-b)/(a+b))=

    Text Solution

    |

  3. If A,B,C are in A.P then (sinA-sinC)/(cosC-cosA)=

    Text Solution

    |

  4. If costheta=1/2(x+1/x) then 1/2(x^2+1/x^2)=

    Text Solution

    |

  5. If : sin (alpha + beta)=1 and sin (alpha-beta)=(1)/(2), "then" : tan ...

    Text Solution

    |

  6. If cos25^0+sin25^0=p , then cos50^0 is sqrt(2-p^2) (b) -sqrt(2-p^2) ...

    Text Solution

    |

  7. The numerical value of (4)/(3) cot^(2)30^(@)-2csc^(2)60^(@)-(3)/(4) t...

    Text Solution

    |

  8. The numerical value of 3csc^(2)""(pi)/(3) + 4 sin^(2)""(pi)/(4)=A)3 B)...

    Text Solution

    |

  9. (tan60^(@)+sec60^(@)-1)/(tan60^(@)-sec60^(@)+1)A)sec30^(@)+2cos60^(@) ...

    Text Solution

    |

  10. If theta is an acute angle such that 4sin^(2) theta-2(sqrt3+1)sinthet...

    Text Solution

    |

  11. If theta is an acute angle such that 2 sin^(2)theta - 2sqrt2 * sin th...

    Text Solution

    |

  12. If A and B are acute angles such that cot(A+B)=1 and cosec(A-B) =2,"...

    Text Solution

    |

  13. If A and B are acute angles such that 2 cos A*cot B-2cos A-cot B+1=0...

    Text Solution

    |

  14. Find the acute angle A and B such that sec A * tan B -sec A -2 tan B...

    Text Solution

    |

  15. If tan^(2) theta-4sqrt3 * tan theta+3=0,"then" : tan theta=

    Text Solution

    |

  16. prove that: sin^2 3 0^(@)+sin^2 4 5^(@)+sin^2 6 0^(@)=3/2

    Text Solution

    |

  17. prove that: 4 cot^2(45^ @) - sec^2(60^ @)+ sin^2(30^ @) = 1/8

    Text Solution

    |

  18. [(1-tan^(2)30^(@))div(1+tan^(2)30^(@))]-sin30^(@)=A)-1 B)0 C)1 D)2

    Text Solution

    |

  19. 2sin 60^(@)-cos180^(@)+(1//3)sin270^(@)=A)sqrt2+(3)/(2) B)sqrt3+(2)/(3...

    Text Solution

    |

  20. If cos theta=-3//5,"where" piltthetalt(3pi//2), "then" : (cssc theta+...

    Text Solution

    |