Home
Class 12
MATHS
In triangle, A B Cif2a^2b^2+2b^2c^2=a^2+...

In triangle, `A B Cif2a^2b^2+2b^2c^2=a^2+b^4+c^4,` then angle B is equal to `45^0` (b) `135^0` `120^0` (d) `60^0`

A

`45^(@)`

B

`135^(@)`

C

`120^(@)`

D

`60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A, B
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS|Exercise Exercise (Statement I And Ii Type Questions)|15 Videos
  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS|Exercise Exercise (Passage Based Questions)|25 Videos
  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS|Exercise Exercise (Single Option Correct Type Questions)|65 Videos
  • PRODUCT OF VECTORS

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|52 Videos
  • SEQUENCES AND SERIES

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|38 Videos

Similar Questions

Explore conceptually related problems

If a + 2b + 3c= 0 , then axxb + bxxc+c xxa is equal to

In a triangle ABC, if (a+b+c)(a+b-c)(b+c-a)(c+a-b)=(8a^2b^2c^2)/(a^2+b^2+c^2) then the triangle is (a)isosceles " " (b)right angled " " (c)equilateral " " (d)obtuse angled

In triangle ABC , s= (a+b+c)/2 , then (b cos^2 frac (C)(2)+ c cos^2 frac (B)(2)) equals:

In any triangle ABC, prove that : (b^2-c^2) cot A + (c^2-a^2)cot B +(a^2-b^2)cotC=0 .

If Delta represents the area of acute angled triangle ABC, then sqrt(a^2b^2-4Delta^2)+sqrt(b^2c^2-4Delta^2)+sqrt(c^2a^2-4Delta^2)= (a) a^2+b^2+c^2 (b) (a^2+b^2+c^2)/2 (c) a bcosC+bc cosA+c acosB (d) a bsinC+b csinA+c asinB

The sides of A B C satisfy the equation 2a^2+4b^2+c^2=4a b+2ac Then a) the triangle is isosceles b) the triangle is obtuse c) B=cos^(-1)(7/8) d) A=cos^(-1)(1/4)

In any triangle ABC, prove that : ((b^2-c^2))/a^2 sin 2A+ ((c^2-a^2))/b^2 sin 2B+ ((a^2-b^2))/c^2 sin2C=0 .

In any triangle ABC, prove that : (b^2-c^2) tan B tan C + (c^2-a^2)tan C tan A+ (a^2-b^2)tan A tan B =0 .

If the roots of x^2-b x+c=0 are two consecutive integers, then b^2-4c is

ARIHANT MATHS-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise (More Than One Correct Option Type Questions)
  1. Find the second order derivative of the function 2logx^2 + 4x

    Text Solution

    |

  2. Is it possible to have a DeltaABC with a=3,b=5, c=7 and C =(2pi)/(3) ...

    Text Solution

    |

  3. Find the second order derivative of the function x.cosx

    Text Solution

    |

  4. Differentiate the following w.r.t x (x + 3)^2 . (x + 4)^3

    Text Solution

    |

  5. Find the second order derivative of the function x^(6) + 2

    Text Solution

    |

  6. Given an isoceles triangle with equal side of length b and angle alpha...

    Text Solution

    |

  7. There can exist a triangle ABC satisfying the condition (sin A)/(2) =(...

    Text Solution

    |

  8. Find (d^2y)/dx^2 , if y = logx

    Text Solution

    |

  9. If in DeltaABC, A =90^(@) and c, sin B and cos B are rational number, ...

    Text Solution

    |

  10. Find second order derivative of the function sin^(-1)x

    Text Solution

    |

  11. Let 'l' is the length of medians from the vertex A to the side BC of a...

    Text Solution

    |

  12. If A,A1,A2 and A3 are the areas of the inscribed and escribed circles ...

    Text Solution

    |

  13. If a, b, A be given in a triangle and c1 and c2 be two possible value ...

    Text Solution

    |

  14. D,E and F are the middle points of the sides of the triangle ABC, then

    Text Solution

    |

  15. The sides of A B C satisfy the equation 2a^2+4b^2+c^2=4a b+2ac Then a...

    Text Solution

    |

  16. If Delta represents the area of acute angled triangle ABC, then sqrt(a...

    Text Solution

    |

  17. In triangle, A B Cif2a^2b^2+2b^2c^2=a^2+b^4+c^4, then angle B is equal...

    Text Solution

    |

  18. If H is the orthocentre of triangle ABC, R = circumradius and P = AH +...

    Text Solution

    |

  19. If inside a big circle exactly n(nlt=3) small circles, each of radius ...

    Text Solution

    |

  20. If in triangle ABC, a, c and angle A are given and c sin A lt a lt c, ...

    Text Solution

    |