Home
Class 12
MATHS
if in a triangle ABC, A ne B and a cos ...

if in a triangle ABC, `A ne B` and ` a cos A =b cos B, ` then which of the following is correct ?

A

`a ^(2) =b^(2) +c^(2)`

B

`c ^(2) =a^(2) +b^(2)`

C

`b ^(2) =c^(2) +a^(2)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 2|90 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 4|91 Videos

  • MCQ ZONE 3

    CHHAYA PUBLICATION|Exercise Question Paper 8|30 Videos

  • Measures of Central Tendency

    CHHAYA PUBLICATION|Exercise Exercise 2 C Very short answer type question|18 Videos

Similar Questions

Explore conceptually related problems

If cos A + cos B = 2, then which of the following is the value of cos (A + B)?

In a triangle ABC, (sin A+ sin B+ sin C) (sin A+sin B-sinC)= 3 sin A sin B, then which one of the following is correct ?

In triangle ABC if a,b,c are sides opposite of angles A, B, C respectivgely, then which of the following is correct ?

If in a triangle ABC, b sin B = c sin C, then the triangle is-

In triangle ABC, If B=90^(@) , state which of the following is true?

In any triangle ABC, prove that cosA + cos B + cos C le 3/2

In any triangle ABC if sin A sin B sin C+ cos A cos B=1 , then show that a:b:c=1:1: sqrt(2) .

In triangle ABC, if (a+b+c)(b+c-a) = 3bc, state which of the following is the value of the angle A?

In a triangle ABC, if (sqrt3-1)a = 2b, A = 3B , then /_C is

In a triangle ABC,sin A-cos B=cosC,then angle B is

CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 9
  1. if in a triangle ABC, A ne B and a cos A =b cos B, then which of the...

    Text Solution

    |

  2. if tan x =b/a, then (sqrt((a+b)/(a-b))+sqrt((a-b)/(a+b))) is equal to-

    Text Solution

    |

  3. The complex number z is is such that |z| =1, z ne -1 and w= (z-1)/(z+1...

    Text Solution

    |

  4. The number of words that can be formed out of the letters of the word ...

    Text Solution

    |

  5. The product [32. (32)^(1//6). (32) ^(1//36). ..o] is equal to-

    Text Solution

    |

  6. If a, b, c are distinct positive rational numbers and they are in A.P....

    Text Solution

    |

  7. If the pth, qth and rth terms of a G.P. are again in G.P., then p, q, ...

    Text Solution

    |

  8. 10 boys and 6 girls are arranged in a row, the number of arrangement i...

    Text Solution

    |

  9. If i= sqrt(-1) then the value of sqrti is-

    Text Solution

    |

  10. The sm of numjbers lying between 107 and 253 and divisible by 5 is-

    Text Solution

    |

  11. The coefficient of x ^(24) in (1+ x^(2)) ^(12)(1+ x^(12))(1+ x ^(24)) ...

    Text Solution

    |

  12. If the sum of squares of the diviations of 10 observations taken from ...

    Text Solution

    |

  13. If omega is a complex cube root of unity, then the value of (2-omega) ...

    Text Solution

    |

  14. If the coefficient of x^(7) in (ax ^(2) +(1)/(bx)) ^(11) equals the c...

    Text Solution

    |

  15. The probability of getting a total of at least 6 in the simultaneous t...

    Text Solution

    |

  16. In the Argand diagram, OAP is an isosceles right angled triangle, righ...

    Text Solution

    |

  17. The real part of (1+ cos ""pi/5 + i sin ""pi/5)^(-1) is-

    Text Solution

    |

  18. The valud of [15^(2)+16^(2)+17^(2)+…+ 30^(2)] is-

    Text Solution

    |

  19. 5 boys and 5 girls are sitting in a row randomly. The probability that...

    Text Solution

    |

  20. If x in RR and (x)/(2x+1) ge 1/4, state which of the following is true...

    Text Solution

    |

  21. The value of (""^(20) C(4) +2* ""^(20)C(3)+""^(20)C(2) -""^(22)C(18)) ...

    Text Solution

    |