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If a line makes an angle of (pi)/(4) eac...

If a line makes an angle of `(pi)/(4)` each of y and z axis, then the angle which it makes with x-axis is …………… .

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PRADEEP PUBLICATION-THREE DIMENSIONAL GEOMETRY-EXERCISE
  1. Fill ups A plane 'p' passes through the point P(1,-2,3). If O is the o...

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  2. Find the cartesian equation of the following planes. vecr.(hati+hatj-h...

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  3. If a line makes an angle of (pi)/(4) each of y and z axis, then the an...

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  4. Fill ups The equation of the plane containing the points (2,0,0),(0,3,...

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  5. Fill ups Distance of the point (4,-2,3) from Y-axis is……………… .

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  6. Fill ups Intercepts made by the plane 2x-3y+5z-30=0 on the coordinate ...

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  7. The acute angle between the planes vecr.(2hati-3hatj+hatk)=1 and vecr....

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  8. Fill ups The image of the poidnt (1,-2,3) in the plane x-2y+3z-14=0 is...

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  9. Fill ups The image of the poidnt (1,-2,3) in the plane x-2y+3z-14=0 is...

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  10. True or false The points (a,0,0),(0,b,0) and (0,0,c) are collinear (ab...

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  11. The points (1, 2, 3), (-2, 3, 4) and (7,0,1) are collinear.

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  12. The unit vector normal to the plane x+2y+3z-6=0 is (1)/(sqrt14)hati+(2...

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  13. True or false The line x=y=z lies in the plane x-2y+z-1=0.

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  14. True or false The line vecr=2hati-3hatj+hatk+t(hati-hatj+2hatk) lies i...

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  15. True or false The projection of the point (alpha,beta,gamma) on the XO...

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  16. The intercepts made by the plane 2 x – 3 y + 5z+4 = 0 on the co-ordina...

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  17. True or false The projection of the point (alpha,beta,gamma) on the z-...

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  18. True or false The vector equation of the line (x-5)/3=(y+4)/7=(z-6)/2 ...

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  19. The acute angle between the planes vecr.(2hati-3hatj+hatk)=1 and vecr....

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  20. If ltl,m,n,gtare D. cosines of a line then l^(2)+m^(2)+n^(2)=

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