Home
Class 11
MATHS
If sinalpha+cosalpha=(1)/(5), find tan((...

If `sinalpha+cosalpha=(1)/(5),` find `tan((alpha)/(2)).`

Text Solution

Verified by Experts

The correct Answer is:
`-(1)/(3)`,2
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES AND FACTORIZATION FORMULAE

    MARVEL PUBLICATION|Exercise MCQs|101 Videos

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MCQs|175 Videos

Similar Questions

Explore conceptually related problems

If sin.alpha/2+cos.alpha/2=1.4, then: sinalpha=

(1-cos alpha)/(sinalpha)=tan(alpha/2)

(a+2)sinalpha(2a-1)cosalpha=(2a+1)if tanalpha is

Prove that (1-cosalpha)/sinalpha=tan(alpha/2)

If sinalpha+cosalpha=p , then what is cos^(2)(2alpha) equal to ?

If (sinalpha+"cosec"alpha)^(2)+(cosalpha+secalpha)^(2)=k+tan^(2)alpha+cot^(2)alpha then the value of k is

If tantheta = (sinalpha-cosalpha)/(sinalpha+cosalpha), then (A) sin alpha-cos alpha=+-sqrt(2) sin theta (B) sinalpha+cosalpha=+-sqrt(2) cos theta (C) cos2theta=sin2alpha (D) sin2theta+cos2alpha=0

If cotalpha=(15)/(8) , then ((2+2sinalpha)(1-sinalpha))/((1+cosalpha)(2-2cosalpha))=?

If tantheta=(sinalpha-cosalpha)/(sinalpha+cosalpha) , then sinalpha+cosalphaandsinalpha-cosalpha are equal to

MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES AND FACTORIZATION FORMULAE-MCQs
  1. If sinalpha+cosalpha=(1)/(5), find tan((alpha)/(2)).

    Text Solution

    |

  2. sin10 5^(@)+cos10 5^(@)=

    Text Solution

    |

  3. sin((pi)/(3)+A).cos((pi)/(3)+B)-cos((pi)/(3)+A).sin((pi)/(3)+B)=...

    Text Solution

    |

  4. If 0 ltA lt(pi//2)and0 ltB lt(pi//2), then angle (A-B) lies in…….. Qua...

    Text Solution

    |

  5. If 0 ltA lt(pi//2)and0 ltB lt(pi//2), then angle (A-B) lies in…….. Qua...

    Text Solution

    |

  6. If sinA=3//5 andcosB=9//41, where A,B are both in the first quadrant, ...

    Text Solution

    |

  7. If sinalpha=15//17, (pi//2) ltalpha ltpi and secbeta=13//12, (3pi//2)...

    Text Solution

    |

  8. If tanalpha=3//4 ,alpha in third quadrant, and cosbeta=9//41,beta, in ...

    Text Solution

    |

  9. If sintheta=1//2,cosphi=12//13, where theta lies in the second quadran...

    Text Solution

    |

  10. For any angles A and B, sin(A+B). sin(A-B)=......

    Text Solution

    |

  11. For any angles A and B, cos(A+B).cos(A-B)=…..

    Text Solution

    |

  12. 1+tanA.tan(A//2)=…..

    Text Solution

    |

  13. ( tan3A + tanA)/(tan3A -tan A)=..

    Text Solution

    |

  14. For any angles A,B,C. (sin(A-B))/(cosA.cosB)+(sin(B-C))/(cosB.cosC)+(s...

    Text Solution

    |

  15. sinx+cosx=sqrt2.sin(....)

    Text Solution

    |

  16. cosx-sinx=sqrt2.cos(....)

    Text Solution

    |

  17. tan20^@+tan25^@+tan20^@.tan25^@=....

    Text Solution

    |

  18. tan4 0^@+2tan1 0^@ is equal to

    Text Solution

    |

  19. If A+B=45^@ then (1+tanA)(1+tanB)=

    Text Solution

    |

  20. If 2sin(x+60^@)=cos(x-30^@), then : tan=…..

    Text Solution

    |

  21. tan(45^(@)+A)tan(45^(@)-A)=

    Text Solution

    |