Square root of a/b + b/a - 2 =
√a - √b
√a + √b
Square root of x2- 2 + 1/x2 =
x - 2
x + 1/x
x + 2
x - 1/x
If (a+b) is one of the factors of a cyclic expression, then the other factors are
b+c
(b+c)(c-a)
(b-c), (c-a)
(b+c), (c+a)
If x+1/x= a; then x2+1/x2 =
a2-2
a2+2
a2
a2+1
Product of the roots of the equation 2x2-3x=5 is
-3/2
3/2
5/2
-5/2
Solution set of x(x-1) =0 is
{1,-1}
{-1}
{0,1}
{0,-1}
4x2- 9= 0; solution set of the given equation is
{9/4}
{3/2}
{±3/2}
{0}
If 5 is a root of the equation x2- (k-1)x+10=0; then then value of K=
-5
7
6
8
3a2+4b2
3a2+4b
3a+4b
3a-4b
Nature of the roots of the equation 4x2-4x+1=0 is
Real and equal
Irrational
Complex
Real and unequal
