Home
Class 10
MATHS
If 5tantheta-4=0, then the value of (5si...

If `5tantheta-4=0`, then the value of `(5sintheta-4costheta)/(5sintheta+4costheta)` is

A

`5/3`

B

`5/6`

C

`0`

D

`1/6`

Text Solution

Verified by Experts

The correct Answer is:
c
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC IDENTITIES

    RD SHARMA ENGLISH|Exercise All Questions|254 Videos

Similar Questions

Explore conceptually related problems

If tantheta =p/q , then the value of (p sintheta-q costheta)/(p sintheta+q costheta) is

if tantheta=(4)/(3) , then the value of (3sintheta+2costheta)/(3sintheta-2costheta) is

If tantheta=(4)/(3) , then find the value of (3sintheta-2costheta)/(3sintheta+5costheta)

(i) If tantheta=(a)/(b) ,then find the value of (2sintheta-3costheta)/(2sintheta+3costheta)

If 3cottheta=2 , find the value of (4sintheta-3costheta)/(2sintheta+6costheta)

If sectheta=5/4 , find the value of (sintheta-2costheta)/(tantheta-cottheta)

if sintheta-costheta=0, then the value of (sin^4theta+cos^4theta)

If 5tantheta =4," then " (5sintheta-3costheta)/(5sintheta+2costheta) is equal to

If sintheta=4/5 , find the value of (4tantheta-5costheta)/(sectheta+4cottheta)

If tantheta=4/5 , find the value of (costheta-sintheta)/(costheta+sintheta) .

RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS-All Questions
  1. If theta is an acute angle such that costheta=3/5 , then (sinthetatant...

    Text Solution

    |

  2. If tantheta=a/b , then (asintheta+bcostheta)/(asintheta-bcostheta) is ...

    Text Solution

    |

  3. If 5tantheta-4=0, then the value of (5sintheta-4costheta)/(5sintheta+4...

    Text Solution

    |

  4. If 16cotx=12, then (sinx-cosx)/(sinx+cosx) equals (a) 1/7 (b) 3/7 (c) ...

    Text Solution

    |

  5. If 8tanx=15 , then sinx-cosx is equal to

    Text Solution

    |

  6. If tantheta=1/(sqrt(7)) , find the value of (cos e c^2theta-sec^2th...

    Text Solution

    |

  7. If tantheta=3/4, then cos^2theta-sin^2theta= (a) 7/(25) (b) 1 (c) -7/...

    Text Solution

    |

  8. If theta is an acute angle such that tan^2theta=8/7 , then the value o...

    Text Solution

    |

  9. If 3costheta=5sintheta, then the value of (5sintheta-2sec^3theta+2cost...

    Text Solution

    |

  10. If tan^2 45^@-cos^2 30^@=xsin45^@ \ cos45^@, then x is (a) 2 (b) -2 (c...

    Text Solution

    |

  11. The value of cos^2 17^@ - sin^2 73^@ is (a) 1 (b) 1/3 (c) 0 (d) -1

    Text Solution

    |

  12. The value of (cos^3 20^@-cos^3 70^@)/(sin^3 70^@-sin^3 20^@) is (a) 1/...

    Text Solution

    |

  13. If A and B are complementary angles, then (a) sinA=cosB (b) cosA=s...

    Text Solution

    |

  14. If xsin(90^@-theta)cot(90^@-theta)=cos(90^@-theta) , then x=

    Text Solution

    |

  15. If xtan45^@cos60^@=sin60^@cot60^@ , then x is equal to

    Text Solution

    |

  16. If angles A ,\ B ,\ C of a /\A B C form an increasing A P , then sinB=...

    Text Solution

    |

  17. If theta is an acute angle such that sec^2theta=3 , then the value...

    Text Solution

    |

  18. The value of tan1otan2otan3oddottan89o is (a) 1 (b) -1 (c) 0 (d) No...

    Text Solution

    |

  19. The value of cos1^@cos2^@cos3^@ .......................................

    Text Solution

    |

  20. The value of tan10otan15otan75otan80o is -1 (b) 0 (c) 1 (d) None of...

    Text Solution

    |