Home
Class 11
MATHS
If (cos x)/(a) = (cos(c + theta))/(b) = ...

If `(cos x)/(a) = (cos(c + theta))/(b) = (cos (x + 2 theta))/© = (cos (c + 3 theta))/(d) ` then `(a+c)/(b+d) ` is equal to

A

`ald `

B

cld

C

blc

D

dla

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • TRANSFORMATIONS

    AAKASH SERIES|Exercise LACTURE SHEET (EXERCISE-I More than One correct answer Type Questions)|5 Videos

  • TRANSFORMATIONS

    AAKASH SERIES|Exercise LACTURE SHEET (EXERCISE-I Linked Comprehnsion Type Questions)|5 Videos

  • TRANSFORMATIONS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCIE) (LEVEL-I SINGLE ANSWER TYPE QUESTIONS)|38 Videos

  • TANGENT AND NORMAL

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|48 Videos

  • TRIGNOMETRIC EQUATIONS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS)|2 Videos

Similar Questions

Explore conceptually related problems

If (cos x )/(a)= (cos (x + theta))/( b ) = ( cos (x + 2 theta ))/( c) = (cos (x + 3 theta ))/( d) then (a+c)/(b+d) is equal to

If (cos x)/(a)=(cos(x+ theta))/(b)=(cos (x+2 theta))/(c)=(cos(x+3 theta))/(d) then (b+d)/(a+c)=

If (cos^(2) theta)/(a) = (sin^(2) theta)/(b) then (cos^(4) theta)/(a) + (sin^(4) theta)/(b) =

If x = sec theta - cos theta and y = sec^(n) theta - cos^(n) theta then ((dy)/(dx))^2 is equal to

If (cos^(2)theta)/(a)=(sin^(2)theta)/(b) then (cos^(4)theta)/(a)+(sin^(4)theta)/(b)=0

If (x)/( cos theta ) = (y) /( cos (theta - 2pi//3))=(z)/( cos ( theta + 2pi//3)) , then x+y+z=

If a = sin theta + cos theta , b =sin^(3) theta + cos^(3) theta , then

If (x)/(a) cos theta + (y)/(b) sin theta = 1 , (x)/(a) sin theta - (y)/(b) cos theta =1 then

cos theta + cos 2 theta + cos 3 theta + …. + cos { (n-1) theta}+ cos n theta=

AAKASH SERIES-TRANSFORMATIONS -LACTURE SHEET (EXERCISE-I Straight Objective Type Questions)
  1. If alpha = (2pi )/(7) , then tan alpha tan 2 alpha + tan 2 alpha tan 4...

    Text Solution

    |

  2. sin "" (2pi)/(7) + sin "" (4pi)/(7) + sin "" (8pi)/(7) =

    Text Solution

    |

  3. sin "" (pi)/(7) sin "" (2pi)/(7) sin "" (4pi )/(7)=

    Text Solution

    |

  4. If A,B,C,D are four angles then sin (A-B) cos (A+B) + sin B (B-C) .c...

    Text Solution

    |

  5. If (x)/(y) = (cos A)/( cos B) then (x tan A +y tan B)/(x +y) =

    Text Solution

    |

  6. If a triangle ABC, cos A + cos B + cos C

    Text Solution

    |

  7. Let 0 lt A, B lt (pi)/(2) satisfying the equation 3 sin ^(2) A + 2 sin...

    Text Solution

    |

  8. If (cos x)/(a) = (cos(c + theta))/(b) = (cos (x + 2 theta))/© = (cos (...

    Text Solution

    |

  9. If theta(1) , theta (2) , theta(3) …..theta (n) are in A.P. then (sin...

    Text Solution

    |

  10. If x = sin alpha + sin beta, y = cos alpha + cos beta then tan alpha ...

    Text Solution

    |

  11. Let f(n)=2 cos nx AA n in N, then f(1)f(n+1)-f(n) is equal to

    Text Solution

    |

  12. If alpha, beta , gamma do not differ by a multiple of a pi and if ( co...

    Text Solution

    |

  13. If cos 2B=(cos (A+C))/(cos(A-C)) , then tan A , tan B , tan C are in

    Text Solution

    |

  14. If xy+yz+zx=1, " then " (x)/( 1+x^(2))+(y)/(1+y^2)+(z)/(1+z^(2))=

    Text Solution

    |

  15. The minimum value of expression sin alha + sin beta + sin gamma where...

    Text Solution

    |

  16. If cos A+ cos B + cos C =0 then cos 3A+ cos 3B + cos 3X

    Text Solution

    |

  17. In a triangle ABC

    Text Solution

    |

  18. In a Delta ABC, sin ^(4) A + sin ^(4) B + sin ^(4) C =

    Text Solution

    |

  19. If A+B+C=pi then |(sin^(2)A,cotA,1),(sin^(2)B,cotB,1),(sin^(2)C,cotC,1...

    Text Solution

    |

  20. If cos alpha + cos beta = 3/2 and sin alpha + sin beta = 1/2 and theta...

    Text Solution

    |