Home
Class 12
MATHS
cot12^(@)*cot 24^(@)*cot28^(@)*cot32^(@)...

`cot12^(@)*cot 24^(@)*cot28^(@)*cot32^(@)*cot48^(@)*cot88^(@)=……..`

A

`tan45^(@)`

B

2

C

`2 tan 15^(@)*tan45^(@)*tan75^(@)`

D

`tan15^(@)*tan45^(@)*tan75^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A, D
Promotional Banner

Topper's Solved these Questions

  • COMPOUND ANGLES

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise-3 : Comprehension Type Problems|12 Videos

  • COMPOUND ANGLES

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise-4 : Matching Type Problems|2 Videos

  • COMPOUND ANGLES

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise-5 : Subjective Type Problems|31 Videos

  • COMPLEX NUMBERS

    VIKAS GUPTA (BLACK BOOK)|Exercise EXERCISE-5 : SUBJECTIVE TYPE PROBLEMS|8 Videos

  • CONTINUITY, DIFFERENTIABILITY AND DIFFERENTIATION

    VIKAS GUPTA (BLACK BOOK)|Exercise EXERCISE (SUBJECTIVE TYPE PROBLEMS)|23 Videos

Similar Questions

Explore conceptually related problems

cot10^(@)cot20^(@)cot60^(@)cot70^(@)cot80^(@)=

Show that: cot16^(@)*cot44^(@)+cot44^(@)*cot76^(@)-cot76^(@)*cot16^(@)=3

The value of cot5^(@)*cot15^(@)* cot 25^(@)* cot 35^(@)* cot45^(@) * cot 55^(@) * cot65^(@) * cot 75^(@) * cot 85^(@) is ________

The value of cot41^(@).cot42^(@).cot43^(@).cot44^(@).cot45^(@).cot46^(@).cot.47^(@).cot48^(@).cot49^(@)

cot15^(@)+cot75^(@)+cot135^(@)-csc30^(@)=

The value of (cot25^(@)cot35^(@)+cot95^(@)cot145^(@)+cot85^(@)cot155^(@)) is equal

The value of the product cos12^(@)cot14^(@)cot46^(@)cos48^(@)cot48^(@)cos72^(@)cot74^(@)sin162^(@)=(m)/(n) where m and n are coprime then find the value of (n-12m)

Evaluate each of the following: cot12^(@)cot38^(@)cot52^(@)cot60^(@)cot78^(@)tan5^(@)tan25^(@)tan30^(@)tan65^(@)tan85^(@)

VIKAS GUPTA (BLACK BOOK)-COMPOUND ANGLES-Exercise-2 : One or More than One Answer is/are Correct
  1. cot12^(@)*cot 24^(@)*cot28^(@)*cot32^(@)*cot48^(@)*cot88^(@)=……..

    Text Solution

    |

  2. If the equation cof^4x-2cos e c^2x+a^2=0 has at least one solution, th...

    Text Solution

    |

  3. Which of the following is/are true ?

    Text Solution

    |

  4. Which of the following is/are +ve ?

    Text Solution

    |

  5. If sin alpha +cos alpha =(sqrt(3)+1)/(2), 0 lt alpha lt 2pi, then poss...

    Text Solution

    |

  6. If 3sinbeta=sin(2alpha+beta) then

    Text Solution

    |

  7. If sin(x+20^0)=2sinxcos40^0,w h r ex in (0,pi/2), then which of the fo...

    Text Solution

    |

  8. If 2(cos(x-y)+cos(y-z)+cos(z-x))=-3, then :

    Text Solution

    |

  9. If 0 lt x lt (pi)/(2) and sin^(n)x+cos^(n)x ge 1, then 'n' may belong ...

    Text Solution

    |

  10. If x=sin(alpha-beta)*sin(gamma-delta), y=sin(beta-gamma)*sin(alpha-de...

    Text Solution

    |

  11. If x = X cos theta- Y sin theta, y = X sin theta + Y cos theta and x^2...

    Text Solution

    |

  12. If 2a=2tan10^(@)+tan50^(@), 2b=tan20^(@)+tan50^(@) 2c=2tan10^(@)+tan...

    Text Solution

    |

  13. Which of the following real numbers when simplified are neither termi...

    Text Solution

    |

  14. If a=sinxcos^3x and b=cosxsin^3x then

    Text Solution

    |

  15. If (pi)/(2) lt theta lt pi, then possible answers of sqrt(2+sqrt(2+2c...

    Text Solution

    |

  16. If cot^(3)alpha+cot^(2)alpha+cot alpha=1 then which of the following i...

    Text Solution

    |

  17. The value of x in (0,pi/2) satisfying (sqrt(3)-1)/(sinx)+(sqrt(3)+1)/(...

    Text Solution

    |

  18. If alpha gt (1)/(sin^(6)x+cos^(6)x) AA x in R, then alpha can be

    Text Solution

    |

  19. If x in (0, (pi)/(2)) and sinx=(3)/(sqrt(10)), Let k=log(10)sinx+log...

    Text Solution

    |

  20. If A, B, C are angles of Delta ABC and tan A tan C = 3, tan B tan C =...

    Text Solution

    |