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The plane 4x+7y+4z+81=0 is rotated throu...

The plane `4x+7y+4z+81=0` is rotated through a right angle about its line of intersection with the plane `5x+3y+10z=25`. If the equation of the plane in its new position is `x-4y+6z=K`, then the value of K is

A

106

B

-89

C

73

D

37

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The correct Answer is:
A
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TARGET PUBLICATION-PLANE-CRITICAL THINKING
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  6. A plane meets the co-ordinate axes at A,B,C and (alpha,beta,gamma) is ...

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  7. If plane 6x-3y+2z-18 meets co-ordinate axes at points A,B,C, then cent...

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  9. A plane a constant distance p from the origin meets the coordinate axe...

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  10. Foot of perpendicular of point (2,2,2) in the plane x+y+z=9 is

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  11. The plane passing through the point (5,1,2) perpendicular to the line ...

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  14. Equation of a plane bisecting the angle between the planes 2x-y+2z+3=0...

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  15. The line (x+3)/(3)=(y-2)/(-2)=(z+1)/(1) and the plane 4x+5y+3z-5=0 int...

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  16. The point at which the line joining the points (2, -3, 1) and (3, -4, ...

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  17. Find the distance of the point of intersection of the line (x-3)/1=(y-...

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  18. The distance of the point (1,-2,3) from the plane x-y+z=5 measured par...

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  19. Equation of the plane parallel to the planes x+2y+3z-5=0," "x+2y+...

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  20. Equation of plane equidistant form planes 3x+4y+5z-6=0 and 3x+4y+5z+6=...

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