If α and β are the roots of the equation ax2+bx+c=0, then the quadratic equation having 1/α , 1/β as roots is
bx2+ax+c=0
ax2-bx+c=0
cx2+bx+a=0
cx2-bx-a=0
Square root of x2- 2 + 1/x2 =
x - 2
x + 1/x
x + 2
x - 1/x
a2+b3
a2- b3
a4+b3
a2+b6
Product of the roots of the equation 2x2-3x=5 is
-3/2
3/2
5/2
-5/2
If ax2+ bx+c is a perfect square, then
a2= 4bc
b2= 4ac
a=4c
b2= 4a
Nature of the roots of the equation 4x2-4x+1=0 is
Real and equal
Irrational
Complex
Real and unequal
4x2- 9= 0; solution set of the given equation is
{9/4}
{3/2}
{±3/2}
{0}
Square root of a/b + b/a - 2 =
√a - √b
√a + √b
First order homogeneous expression (x,y,z as variable) is
ax+bz
ay+az
ax+by+cz
a(xyz)
3a2+4b2
3a2+4b
3a+4b
3a-4b
