Home
Class 12
MATHS
pdotC(21)+qdotC(22)+rdotC(23)= (a) 0 (...

`pdotC_(21)+qdotC_(22)+rdotC_(23)=` `(a) 0` (b) `triangle` (c) `-triangle` (d) `4`

Promotional Banner

Topper's Solved these Questions

  • INVERSE TRIGONOMETRIC FUNCTIONS

    RESONANCE DPP|Exercise All Questions|15 Videos
  • MATRICES

    RESONANCE DPP|Exercise All Questions|7 Videos

Similar Questions

Explore conceptually related problems

qdotM_(12)+ydotM_(22)+mdotM_(32)= (a) 0 (b) triangle (c) -triangle (d) None of these

xdotC_(21)+ydotC_(22)+zdotC_(23) is (a)0 (b) delta (c) -delta (d) None of these

The three points (-2,2)(9,-2),a n d(-4,-3) are the vertices of (a) an isosceles triangle (b) an equilateral triangle (c) a right-angled triangle (d) none of these

For a /_\ABC, if cotA.cotB.cotCgt0 , then nature of the triangle is (A) acute angled triangle (B) right angled triangle (C) obtuse angled triangle (D) none of these

triangle ABC with vertices A(0-2,0),B(2,0) and C(0,2) is similar to triangle DEF with vertices D(-4,0) ,E(4,0) and F(0,4).

The straight lines x +y=0, 5x + y= 4 and x+5y=4 form (A) an isosceles triangle (B) an equilateral triangle (C) a scalene triangle (D) a right angled triangle

If A(1,-1,2),B(2,1,-1)C(3,-1,2) are the vertices of a triangle then the area of triangle ABC is (A) sqrt(12) (B) sqrt(3) (C) sqrt(5) (D) sqrt(13)

Show that the points A(3, -2,1), B(1,-3,5), C(2,1,-4) do not form a right - angled triangle.

If A(a,2,2),B(a,b,1) and C(1,2,-2) are the vertices of triangle ABC and G(2,1,c) is centroid, then values of a,b and c are

RESONANCE DPP-JEE MAINS-All Questions
  1. If 4a^2+c^2=b^2-4a c , then the variable line a x+b y+c=0 always passe...

    Text Solution

    |

  2. If f(x)={[x]+sqrt({x}),x<1 1/([x]+{x}^2),xgeq1 , then [where [.] and {...

    Text Solution

    |

  3. pdotC(21)+qdotC(22)+rdotC(23)= (a) 0 (b) triangle (c) -triangle (d...

    Text Solution

    |

  4. Let A" "=" "{9," "10 ," "11 ," "12 ," "13} and let f" ":" "A ->N be de...

    Text Solution

    |

  5. If (0,1),(1,1)a n d(1,0) be the middle points of the sides of a triang...

    Text Solution

    |

  6. The quadratic equation whose root:s are sec^2 alpha and cosec^2 alpha...

    Text Solution

    |

  7. Consider the function f(x) = (.^(x+1)C(2x-8))(.^(2x - 8)C(x + 1)) Sta...

    Text Solution

    |

  8. if a,b,c are positive real numbers such that a^(log3(7));b^(log7(11))=...

    Text Solution

    |

  9. The graph of the function y =f(x). Then which of the following could r...

    Text Solution

    |

  10. Let 0 lt alpha lt (pi)/(2) be a fixed angle . If p=(costheta, sin the...

    Text Solution

    |

  11. The interior angle bisector of angle P for the trangle P Q R whose coo...

    Text Solution

    |

  12. The graph of function f1(x)={1,ifxlt=0x^2+1,if0<x<2,f2(x)=(log)(1/2)(x...

    Text Solution

    |

  13. The set of solution of inequality [x]^2=-[x], where [.] denotes greate...

    Text Solution

    |

  14. ("lim")(xvec0)[(sin(sgn(x)))/((sgn(x)))], where[dot] denotes the great...

    Text Solution

    |

  15. The radius of the circle which touches the co-ordinates axes and the ...

    Text Solution

    |

  16. Two vertices of a rectangle are on the positive x-axis. The other two ...

    Text Solution

    |

  17. Equation of a circle of radius 2 and touching the circles x^2+y^2-4|x|...

    Text Solution

    |

  18. If x is real and Delta(x)=|[x^2+x, 2x-1, x+3] , [3x+1, 2+x^2, x^2-3] ,...

    Text Solution

    |

  19. The sides of a triangle are the straight lines x+y=1,7y=x , and sqrt(...

    Text Solution

    |

  20. Let f(x)={x^2-4x+3,x&lt;3 and x-4,xgeq3 }a n d g(x)={1,x&lt;1 and ...

    Text Solution

    |