If the equation of a plane is `lx + my + nz = p` which is in the normal form, then which one of the following is not true?

If a, b, and c are in A.P., then which one of thew following is not true?

If p is a number between 0 and 1, which one of the following is true?

Equation of plane in normal form

If one root of the equation (l-m)x^(2)+lx+1=0 is double the other and l is a real number, then which of the following is true ?

Let P_(1) denotes the equation of the plane to which the vector ( hati+ hatj) is normal and which constains the line (L) whose equation is vecr =hati+ hatj+ hatk+ lambda( hati- hatj- hatk) and P_(2) denotes the equation of the plane containing the line L and a pouint with position of the hatj which of the following holds good?

If lx+my+nz=p is equation of a plane in normal form, then

If lx+my+nz=p is equation of a plane in normal form, then

Write the equation of a plane in the normal form and explain the terms.