If the curve y=1+4−x2 and the line y=(x−2)k+4 has two distinct points of intersection then the range of k, is
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The quadratic equation ax2+bx+c=0, (a=0) has atmost _____ roots.
Which of the following is not a quadratic equation?
The condition for px2+qx+r=0 to be pure quadratic is:
If sinα=p, where ∣p∣⩽1 then quadratic equation whose roots are tan2α and cot2α is
is the following equation quadratic?x2−2x+5=x2
prove that a3(b−c)3+b3(c−a)3+c3(a−b)3= a3(c−b)+b3(a−c)+c3(b−a)