Home
Class 12
MATHS
If tantheta=-4//3, then sintheta is...

If `tantheta=-4//3,` then `sintheta` is

A

`-4//5"but not"4//5`

B

`-4//5or 4//5`

C

`4//5"but not"-4//5`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIOS AND IDENTITIES

    OBJECTIVE RD SHARMA|Exercise Chapter Test|60 Videos

  • TRIGONOMETRIC RATIOS AND IDENTITIES

    OBJECTIVE RD SHARMA|Exercise Section II - Assertion Reason Type|13 Videos

  • TRIGONOMETRIC EQUATIONS AND INEQUATIONS

    OBJECTIVE RD SHARMA|Exercise Chapter Test|60 Videos

Similar Questions

Explore conceptually related problems

If tantheta= (-4)/(5) ,then sintheta is

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

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

If (sectheta+tantheta)/(sectheta-tantheta)=(5)/(3) , then sintheta is equal to

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

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

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

If tantheta=(p)/(q) , then (p sintheta-qcostheta)/(p sintheta+qcostheta)=?

If tantheta=(24)/(7) and sintheta is negative then value of costheta will be

OBJECTIVE RD SHARMA-TRIGONOMETRIC RATIOS AND IDENTITIES-Exercise
  1. Given A=sin^2theta+cos^2theta, then for all real theta, 1lt=Alt=2 (b...

    Text Solution

    |

  2. The expression tan^2alpha+cot^2alpha is

    Text Solution

    |

  3. If tantheta=-4//3, then sintheta is

    Text Solution

    |

  4. If sintheta+costheta=sqrt2costhetathen costheta-sintheta is equal to

    Text Solution

    |

  5. In a right angled triangle, the hypotenuse is four times as long as th...

    Text Solution

    |

  6. If theta lies in the first quardrant and costheta=(8)/( 17 ), then fi...

    Text Solution

    |

  7. cos^4(pi/8)+cos^4((3pi)/8)+cos^4((5pi)/8)+cos^4((7pi)/8)=

    Text Solution

    |

  8. If tan(A+B)=pand tan(A-B)=q, then the value of tan2A, is

    Text Solution

    |

  9. In a triangle ABC, sin A-cosB=cosC, then angle B, is

    Text Solution

    |

  10. If theta lies in the first quadrant which of the following in not true

    Text Solution

    |

  11. cos2 theta+2 costheta is always

    Text Solution

    |

  12. The interior angles of a polygon are in AP The smallest angle is 120 a...

    Text Solution

    |

  13. The maximum and minimum values of -4le5cos theta+3cos(theta+(pi)/(3...

    Text Solution

    |

  14. sin36^@sin72^@sin108^@sin144^@=5/16

    Text Solution

    |

  15. If A=tan6^0tan42^0 and B=cot66^0cot78^0 , then

    Text Solution

    |

  16. If sinx+cosesx=2,thensin^(n)x+cosec^(n)x is equal to

    Text Solution

    |

  17. If x/acosalpha+y/bsinalpha=1, x/acosbeta+y/bsinbeta=1 and (cos alpha c...

    Text Solution

    |

  18. The value of theta lying between 0 and pi/2 and satisfying |[1+sin^2th...

    Text Solution

    |

  19. The value of sqrt3cot20^(@)-4cos20^(@) is

    Text Solution

    |

  20. sqrt(3)cossec2 0^0-sec2 0^0

    Text Solution

    |