Square root of x2 - 2 + 1/x2 =
x - 2
x + 1/x
x + 2
x - 1/x
If 5 is a root of the equation x2- (k-1) x+10 =0; then the value of k=
-5
7
6
8
The second order homogenous expression in x,y
ax2+ b xy + c y2
ax2 + b x
ax+by2
ax2+by
Square root of (x-2)2 . (x+1)2. (2 x+1)2 =
(x-2) (x+1) (2 x+1)
(x-2)2(x+1)2 (2 x+1)2
(x-2)4 (x+1)4(2 x+1)4
(x-2) (2 x+1)
Frame an equation in x having 2 and -3 as roots.
x2+x+6=0
x2-x-6=0
x2-6=0
x2+x-6=0
Solution set of x(x-1) =0 is
{1, -1}
{-1}
{0,1}
{0,-1}
Square root of
2x4y2
4x8y2
2x8y2
16x8y2
Sum of the roots of the equation 4 x2 -1 = 0 is
-1/4
0
1/4
4
IF x+1/x= a, then x2+ 1/x2 =
a2-2
a2+2
a2
a2+1
