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Find the circumcentre of the triangle fo...

Find the circumcentre of the triangle formed by the points (2,1),(1,-2) and (-2,3).

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The correct Answer is:
`(-6/7, 2/7)`
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AAKASH SERIES-STRAIGHT LINES-SOLVED EXAMPLES
  1. Find the orthocentre of the triangle formed by the lines x+2y=0,4x+3y=...

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  2. Two vertices of a triangle are (5,-1) and (-2,3). If the orthocentre ...

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  3. Find the circumcentre of the triangle formed by the points (2,1),(1,-2...

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  4. Find the circumcentre of the triangle whose vertices are A(1,0),B(-1,2...

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  5. Find the circumcentre of the triangle formed by the lines x+y=0, 2x+y+...

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  6. Find the circumcentre of the triangle whose sides are 3x-y-5=0, x+2y-4...

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  7. Find the incenter of the triangle formed by the straight lines y=sqrt(...

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  8. Find the incentre of the triangle formed by x+y-7=0,x-y+1=0,x-3y+5=0.

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  9. A triangle is formed by the lines ax+by+c=0, lx+my+n=0 and px+qy+r=0. ...

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  10. The Cartesian equation of the sides BC,CA, AB of a triangle are respec...

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  11. Find the acute angle between the lines y+2=0 and sqrt(3)x+y-1=0.

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  12. Find the value of k if the lines 2x+ky-10=0 and 5x+2y-7=0 are parallel...

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  13. Find the value of k if the lines (3x+4y+5)-k(x+y+3)=0 is (i) paral...

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  14. The lines 3x-ky-2=0 and 2x+y+2=0 are perpendicular find k.

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  15. The angle between the lines 3x-y-1=0 and 2x+ky+5=0 is 45^(@) find k

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  16. Find the angles of the triangle whose sides are x+y-4=0, 2x+y-6=0, 5x+...

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  17. If the four straight lines ax+by+p=0, ax+by+q=0, cx+dy+r=0 and cx+dy+s...

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  18. Find the foot of the perpendicular drawn from (-1,3) on the line 5x-y-...

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  19. Show that the feet of the perpendicular from (-2,-8) to the lines x-2y...

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  20. Find the image of (1-2) in the line 2x-3y+5=0.

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