The equation `xy=0` in three dimensional space is represented by (A) a plane (B) two planes at righat angles (C) a pair of parallel planes (D) a pair of straighat lines

The equation (x-1)(x-2)=0 in thre dimensional space is represented by (A) a pair of straighat lines (B) a pair of parallel planes (C) a sphere (D) none of these

The equation (x-1)(x-2)=0 in thre dimensional space is represented by (A) a pair of straighat lines (B) a pair of parallel planes (C) a sphere (D) none of these

The equation x^2-x-2=0 in three dimensional space is represented by (A) a pair of parallel planes (B) as pair of straight lines (C) a pair of perpendicular planes (D) a set containing two distinct points

The equation xy+yz=0 represents (A) a pair of straight lines (B) a pair of parallel lines (C) a pair of parallel planes (D) a pair of perpendicular planes

The graph of the equation x^2+y^2=0 in the three dimensional space is (A) x-axis (B) y-axis (C) z-axis (D) xy-plane

The graph of the equation x^2+y^2=0 in the three dimensional space is (A) x-axis (B) y-axis (C) z-axis (D) xy-plane

Assertion: The equation 3y+4z=0 in three dimensional space represents a plane containing x-axis., Reason: An equation of the form ax+by+cz+d=0 always represents a plane. (A) Both A and R are true and R is the correct explanation of A (B) Both A and R are true R is not the correct explanation of A (C) A is true but R is false. (D) A is false but R is true.

The equation ax+by +c=0 represents a plane perpendicular to the

In a three-dimensional x y z space , the equation x^2-5x+6=0 represents a. Points b. planes c. curves d. pair of straight lines

In a three-dimensional x y z space , the equation x^2-5x+6=0 represents a. Points b. planes c. curves d. pair of straight lines