A. 2
B. 3
C. 4
D. 5
If b2-4ac>0,then the graph of y= ax2+bx+c
If ax2+bx+c=0 and bx2+cx+a=0 have a common root and a≠0 then a3+b3+c3/abc=
If α, β are different values of θ satisfying the equations 5 cos θ+12 sin θ=11 then the value of sin (α+β)=
The quadratic equation x2 + ax + bc = 0, x2 + bx + ca = 0 have a common root, then the quadratic equations whose roots are the remaining roots in the given equations is (where, a ≠ b)
If α,β are the roots of ax2+bx+c=0 then (α/β – β/α)2=
α and β are the roots of the equation x2+px+p3=0,(p≠0).If the points (α,β) lies on the curve x=y2,then the roots of the given equation are
If the roots of x2+bx+c=0 are two consecutive integers then b2-4c=
A number consists of two digits whose product is 30.If the digits are interchanged the resulting numbers will exceed the previously by 9.The number is
If the roots of x2-2(5+2k)x+3(7+10k)=0 are equal then k=
The quadratic equations x2 – 6xa = 0 and x2 – cx + 6 = 0 and have one root in common. The other roots of the first and second equations are integers in the ratio 4 : 3. Then the common root is