Home
Class 12
MATHS
If in a DeltaABC a + c = 2b , then the ...

If in a `DeltaABC ` a + c = 2b , then the value of `cot""(A)/(2) * cot""(B)/(2)` is equal to

A

4.5

B

3

C

1.5

D

1

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER - 8

    KCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|60 Videos

  • MODEL TEST PAPER 10

    KCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|60 Videos

Similar Questions

Explore conceptually related problems

In a DeltaABC , if a+b=3c , then the value of cot.(A)/(2)cot.(B)/(2) is

In DeltaABC if A+B= 90^(@) ,then find the value of cos C.

If A + B+ C = 3 pi//2 , then the value of cos 2 A + cos 2 B + cos2 C is equal to

The value of tan67(1^(@))/(2)+cot67(1^(@))/(2) is

If tanA +cotA=2 , then the value of tan^(4)A+cot^(4)A=

If the sides a,b,c of a triangle are in A.P., then the value of cot.(A)/(2)cot.(C)/(2) is

The value of sec ( 2 cot^(-1) 2 + cos^(-1) . 3/5) is equal to

Find the value of tan { cot ^(-1) ((-2)/3)}

In DeltaABC right angled at C,the value of cos(A+B) is:

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 02-MATHEMATICS
  1. The value of (sin^(2) 3 A)/(sin^(2) A) - (cos^(2) 3 A)/(cos^(2) A) is ...

    Text Solution

    |

  2. If sin^(-1) ((2a)/(1 +a^(2))) + sin^(-1) ((2b)/(1 + b^(2))) = 2tan^(-1...

    Text Solution

    |

  3. If in a DeltaABC a + c = 2b , then the value of cot""(A)/(2) * cot""(...

    Text Solution

    |

  4. A flag- staff 6 metre high is placed on the top of a tower . The flag-...

    Text Solution

    |

  5. The equation ax + by + c =0 represents a straight line

    Text Solution

    |

  6. The equation of the line passing through (-1 , -2) and having a slope ...

    Text Solution

    |

  7. The angle between the lines x cos alpha + y sin alpha = a and x sin be...

    Text Solution

    |

  8. The co-ordinates of the centre and the radius of the circle x^(2) + y^...

    Text Solution

    |

  9. The equation x^(2) + y^(2) + 2gx + 2 fy + c = 0 represents a circle o...

    Text Solution

    |

  10. The length of the latus rectum of the ellipse 25x^(2) + 4y^(2) = 100 ,...

    Text Solution

    |

  11. The standard equation of the hyperbola having the distance between foc...

    Text Solution

    |

  12. Find the eccentricity of the elipse ( x^(2))/( 16)+ ( y^(2) )/( 9) =1

    Text Solution

    |

  13. If the angle between the lines whose direction ratios are 2 , -1 , 2 a...

    Text Solution

    |

  14. The point of intersection of the lines (x + 1)/(3) = (y + 3)/(5) = (z...

    Text Solution

    |

  15. The point of intersection of the line joining the points (-3 , 4 , -8)...

    Text Solution

    |

  16. If a real valued function of a real variable is defined as f (x) = cos...

    Text Solution

    |

  17. If X = { 1 , 2 , 3} and Y = {0 , 1} and f : X to Y defined by f = { (1...

    Text Solution

    |

  18. lim(x to oo) ((x + 6)/(x + 1))^(x + 4) , is equal to

    Text Solution

    |

  19. If the function . f(x) = 4 xx 5^(x) for x lt 0 = 8a + x for x ge 0...

    Text Solution

    |

  20. If f(a) = 2 , f ' (a) = 1 , g (a) = -1 , g'(a) = 2 , then lim(x to a) ...

    Text Solution

    |