Home
Class 12
MATHS
In a !ABC if sin A cos B = 1/4 and 3 tan...

In a `!ABC` if sin A cos B = `1/4` and 3 tan A = B , then the triangle is

A

right angled

B

equilateral

C

isosceles

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY RATIOS AND IDENTITIES

    ML KHANNA|Exercise PROBLEM SET (6) TRUE AND FALSE|8 Videos

  • TRIGONOMETRY RATIOS AND IDENTITIES

    ML KHANNA|Exercise PROBLEM SET (6) FILL IN THE BLANKS|1 Videos

  • TRIGONOMETRY RATIOS AND IDENTITIES

    ML KHANNA|Exercise PROBLEM SET (5) ( MULTIPLE CHOICE QUESTIONS)|26 Videos

  • TRIGONOMETRICAL EQUATIONS

    ML KHANNA|Exercise SELF ASSESSMENT TEST |27 Videos

Similar Questions

Explore conceptually related problems

In triangle ABC, if sin A cos B=(1)/(4) and 3tan A=tan B, then cot ^(2)A is equal to (a)2 (b) 3 (c) 4 (d) 5 .

If in a Delta ABC, cos B = (sin A)/(2 sin C), then the triangle is

In Delta ABC, if sin^(4)A sin B sin C=1-cos B cos C then triangle is necessarily

In Delta ABC, If tan B tan C+tan C tan A+tan A tan B=sqrt(3)tan A tan B tan C then the triangle is

If sinA=sin^2B and 2cos^2A=3cos^2B then the triangle ABC is

in a Delta ABC,3sin A+4cos B=6 and 3cos A+4sin B=1 then angle C is

ML KHANNA-TRIGONOMETRY RATIOS AND IDENTITIES-PROBLEM SET (6) ( MULTIPLE CHOICE QUESTIONS)
  1. If A+B+C=pi , prove that : sin^2, A/2 + sin^2, B/2 -sin^2, C/2 =1-2 co...

    Text Solution

    |

  2. If : cos^(2) A + cos^(2) B + cos^(2) C = 1, "then" : Delta ABC is

    Text Solution

    |

  3. In a !ABC if sin A cos B = 1/4 and 3 tan A = B , then the triangle is

    Text Solution

    |

  4. If any /\ABC, tanA+tanB+tanC=6 and tanAtanB=2, then the values of tanA...

    Text Solution

    |

  5. If in a triangle ABC, tan A + tan B + tanC has the value 6, then the v...

    Text Solution

    |

  6. In a triangle ABC if tanA: tan B : tan C = 3:4:5 then the value of sin...

    Text Solution

    |

  7. If A+B+C=pi, prove that tan^2A/2+tan^2B/2+tan^2C/2geq1.

    Text Solution

    |

  8. If A+B+C=pi and A, B, C are acute positive angles and cotA cotB cotC =...

    Text Solution

    |

  9. In a DeltaABC, "the value of"cot""(A)/(2)cot""(B)/(2)cos""(C)/(2)is

    Text Solution

    |

  10. " If alpha=(2 pi)/(7) ,then the value of tan alpha tan2 alpha+tan2 alp...

    Text Solution

    |

  11. If x+y+z=pi //2, then tan y tan z + tan z tan x + tan x tan y =

    Text Solution

    |

  12. If x+y+z =pi //2, then cot x +cot y +cot z=

    Text Solution

    |

  13. In a triangle ABC, sum cot A cot B=

    Text Solution

    |

  14. If A,B,C be the angles of a triangle, then sum (cot A + cot B)/( tan A...

    Text Solution

    |

  15. Consider a triangle ABC such that cotA+cotB+cotC=cot theta. Now answe...

    Text Solution

    |

  16. In a triangle ABC, if cot A + cot B + cotC =cot theta , then ( si...

    Text Solution

    |

  17. In a triangle ABC, if cot A + cot B + cotC =cot theta , then The ...

    Text Solution

    |

  18. If Sigmaxy =1 , then Sigma (x+y)/( 1-xy)=

    Text Solution

    |

  19. In a triangle ABC, if the angles are in the ratio 1:2:4, then ( sum se...

    Text Solution

    |

  20. tan A, tan B , tan C are the roots of the cubic equation x^(3) - 7x^(2...

    Text Solution

    |