3-d

Related Questions

• The length of the perpendicular from the origin to the plane $3x+4y+12z=52$ is

  ---

• The perpendicular distance of the point (2, 4, –1) from the line $\frac{x+5}{1}=\frac{y+3}{4}=\frac{z-6}{-9}$ is

  ---

• If O is the origin and $OP=3$with direction ratios $-1,\,2,-2$, then co-ordinates of P are

  ---

• If a line makes $\alpha ,\beta ,\gamma $ with the positive direction of $x,\ y$ and z-axis respectively. Then, ${{\cos }^{2}}\alpha +{{\cos }^{2}}\beta +{{\cos }^{2}}\gamma $ is

  ---

• If a plane cuts off intercepts $OA=a,OB=b,$ $OC=c$ from the co-ordinate axes, then the area of the triangle $ABC$ =

  ---