Through the point `( alpha,beta, gamma)` a plane is drawn perpendicular to OP where O is the origin. Let the plane meet the coordinate axes at L,M,N. Show that the area of the triangle LMN = ` r^5/ (2 alpha beta gamma)`

Through the point P( alpha, beta ,lambda) a plane is drown prependicular to OP where O is the origin. Let this plane meet the coordinate axes at L,M and N .Show that the area of the triangle LMN =r^(5)/((2 alpha beta lambda)) where |vec(OP)|=r

Reflexion of the point (alpha, beta, gamma) in XY plane is

Reflection of the point (alpha, beta, gamma) in XY plane is

The reflection of the point (alpha,beta,gamma) in the xy plane is

reflection of the point (alpha, beta, gamma) in the XY-plane is :

The reflection of the point (alpha,beta,gamma) in the xy-plane is:

Find the equation of the plane, which meets the axes in A,B,C given that centroid of the triangle ABC is the point (alpha, beta, gamma) .

Find the equation of a plane which meets the axes in A,B and C, given that the centroid of the triangle ABC is the point (alpha,beta,gamma)

Find the equation of a plane which meets the axes in A ,Ba n dC , given that the centroid of the triangle A B C is the point (alpha,beta,gamma)