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The points (a,b+c),(b,c+a) and (c,a+b)...

The points `(a,b+c),(b,c+a)` and `(c,a+b)`

A

vertices of an equilateral triangle

B

concyclic

C

vertices of a right angled triangle

D

none of these

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The correct Answer is:
D
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MCGROW HILL PUBLICATION-CARTESIAN SYSTEM OF RECTANGULAR COORDINATES AND STRAIGHT LINES -SOLVED EXAMPLES (LEVEL 1) SINGLE CORRECT ANSWER TYPE QUESTIONS
  1. If a vertex of a triangle is (1, 1) and the mid-points of two side thr...

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  2. The points (a,b+c),(b,c+a) and (c,a+b)

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  3. If the lines x+2ay+a=0, x+3by+b=0 and x+4cy+c=0 are concurrent then a,...

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  4. I. If p is the length of the perpendicular from the origin on the line...

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  5. If a, x(1), x(2) are in G.P. with common ration r, and b, y(1), y(2) a...

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  6. Line joining A(bcosalpha,bsinalpha) and B(acosbeta,asinbeta), is produ...

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  7. If the circumcenter of an acute-angled triangle lies at the origin ...

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  8. If P(1) and p(2) are the lenghts of the perpendiculars drawn from the ...

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  9. O P Q R is a square and M ,N are the middle points of the sides P Qa n...

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  10. The equation of the locus of the point of intersection of the straight...

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  11. Points A (a,3) and C (5,b) are opposite vertices of a rectangle ABCD. ...

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  12. If the equation (a1-a2)x+(b1-b2)y=c represents the perpendicular bisec...

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  13. The equation of the straight line passing through the point (4. 3) and...

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  14. If a,b,c are non-zero real numbers in H.P then the line (x)/(a)+(y)/(...

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  15. The line parallel to the x-axis and passing through the intersection o...

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  16. A straight line through the point A(3, 4) is such that its intercept b...

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  17. Let A(h, k), B(1, 1) and C(2, 1) be the vertices of a right angled ...

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  18. Let A(2,-3)a n dB(-2,1) be vertices of a triangle A B Cdot If the cent...

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  19. If the sum of the slopes of the lines given by x^2-2cxy-7y^2=0 is four...

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  20. which Find the locus of the mid-point of the portion of the line x cos...

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