Home
Class 11
MATHS
If A=tan6^0tan42^0 and B=cot66^0cot78^0 ...

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

A

`A=2B`

B

`A=1//3B`

C

`A=B`

D

`3A=2B`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION

    ALLEN|Exercise EXERCISE (JA)|16 Videos
  • BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION

    ALLEN|Exercise EXERCISE (JM)|16 Videos
  • BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION

    ALLEN|Exercise DO YOURSELF 12|1 Videos
  • BASIC MATHS LOGARITHIM TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION

    ALLEN|Exercise ILLUSTRATIONS|39 Videos
  • SOLUTION AND PROPERTIES OF TRIANGLE

    ALLEN|Exercise All Questions|62 Videos

Similar Questions

Explore conceptually related problems

If A=tan6^(@)tan42^(@) and B=cot66^(@)cot78^(@) then

If A=tan6^(@)tan42^(@) and B=cot66^(@)cot78^(@), then

If A=tan6^(@) tan 42^(@) and B= cot 66^(@)cot 78^(@) then-

value of tan6^0tan42^0tan66^0tan78^0 is equal to - a) 1 b) 2 c) 1/4 d) 1/8

cot6^(0)cot42^(0)cot66^(@)cot78^(@)=1

If tan A - tan B =x and cot B - cot A=y, then: cot(A-B)=

If tan A+tan B=p and cot A+cot B=q then cot(A+B)=

Prove that: tan6^(0)tan42^(0)tan66^(@)tan78^(@)=1

ALLEN-BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION -EXERCISE (O-1)
  1. (sin(A-C)+2sinA+sin(A+C))/(sin(B-C)+2sinB+sin(B+C)) is equal to-

    Text Solution

    |

  2. (1+sin2theta+cos2theta)/(1+sin2theta-cos2theta)=

    Text Solution

    |

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

    Text Solution

    |

  4. If x=ycos((2pi)/3)=zcos((4pi)/3), then xy+yz+zx=

    Text Solution

    |

  5. If tanalpha=(1+2^(-x))^(-1), tanbeta=(1+2^(x+1))^(-1), then alpha+beta...

    Text Solution

    |

  6. If tanA+tanB+tanC=tanA.tanB.tanC, then-

    Text Solution

    |

  7. The value of sin10^(@)+2sin20^(@)+sin30^(@)+….+sin360^(@) is equal to

    Text Solution

    |

  8. The number of real solutions of the equation sin(e^x)=2^x+2^(-x) is

    Text Solution

    |

  9. If f(x)=sin(3x)/sin x,x!=npi, then the range of values of f(x) for ...

    Text Solution

    |

  10. If cosx+cosy+cosalpha=0 and sinx + siny + sinalpha=0, then cot((x+y)/2...

    Text Solution

    |

  11. The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14) is

    Text Solution

    |

  12. Maximum and minimum value of 2sin^(2)theta-3sintheta+2 is-

    Text Solution

    |

  13. For theta in(0,pi/2) , the maximum value of sin(theta+pi/6)+cos(theta+...

    Text Solution

    |

  14. Minimum value of the expression cos^2theta-(6 sintheta cos theta) + 3 ...

    Text Solution

    |

  15. The general solution of tan3x=1 is

    Text Solution

    |

  16. If 2tan^(2)theta=sec^(2)theta, then the general solution of theta-

    Text Solution

    |

  17. Number of principle solution(s) of the equation 4.16^(sin^(2)x) = 2^(6...

    Text Solution

    |

  18. If tantheta-sqrt2sectheta=sqrt3 then find the general solution of thet...

    Text Solution

    |

  19. The number of solution of the equation tan^(2)-sec^(10)x+1=0 in (0,10)...

    Text Solution

    |

  20. The solution set of (5+4costheta)(2costheta+1)=0 in the interval [0,2p...

    Text Solution

    |