If the points `(-0,-1,-2),(-3,-4,-5),(-6,-7,-8) and (x,x,x)` are non coplanar then x is (A) `-2` (B) `0` (C) `3` (D) any real number

Show that the points A(2, -1, 0) B(-3, 0, 4), C(-1, -1, 4) and D(0, -5, 2) are non coplanar.

The value of x when the points A(2,-1,1),B(4,0,3),C(x,1,1)andD(2,4,3) are coplanar is

Find the value of x, if the points A(3,2,1),B(4,x,5),C(4,2,2)and(6,5,-1) are coplanar.

The vectors (x,x+1,x+2),(x+3,x+3,x+5) and (x+6,x+7,x+8) are coplanar for (A) all values of x (B) xlt0 (C) xgt0 (D) none of these

The points A(1,1,0),B(0,1,1),C(1,0,1) and D(2/3, 2/3, 2/3) are (A) coplanar (B) non coplanar (C) vertices of a paralleloram (D) none of these

The number of real roots of 3^2x^2-7x+7=9 is (A) 0 (B) 2 (C) 1 (D) 4

The number of real roots of equation x^8-x^5+x^2-x+1=0 is (A) 2 (B) 4 (C) 6 (D) 0

The number of solutions of sqrt(3x^(2)+x+5)=x-3 is (A) 0 (B) 1 (C) 2 (D) 4

The number of real solutions of the equation (6-x)^4+(8-x)^4=16 is (A) 1 (B) 2 (C) 4 (D) 0