The chord of the curve `y = x^2 + 2ax + b` joining the points where `x = alpha and x = beta`, isparallel to the tangent to the curve at abscissa `x=`

The chord of the curve y=x^2+2ax+b , joining the points where x=alpha " and " x=beta , is parallel to the tangent to the curve at abscissa x=

The chord of the curve ax^(2)+bx+c=0 , joining the points x=p and x=q on the curve is parallel to the tangent to the curve at x=c where -

The chord joining the points where x = p and x = q on the curve y = ax^(2)+bx+c is parallel to the tangent at the point on the curve whose abscissa is

The chord joining the points where x = p and x = q on the curve y = ax^(2)+bx+c is parallel to the tangent at the point on the curve whose abscissa is

The chord joining the points where x=p and x=q on the curve y =a x^(2) +bx +c is parallel to the tangent at the point on the curve whose abscissa is

If the chord joining the points where x=p, x=q on the curve y=ax^(2)+bx+c is parallel to the tangent to the curve (alpha, beta)( then alpha=

The chord joining the points where x = p, and x = q on the curve y = ax' + bx + c is parallel tangent at the point on the curve whose abscissa is to the

If the chord joining the points where x=p,x=q on the curve y=ax^(2)+bx+c is parallel to the tangent drawn to the curve (alpha,beta) then alpha(A)pq(B)sqrt(p)q(C)(p+q)/(2) (D) (p-q)/(2)

The point on the curve f (x) = sqrt(x ^(2) - 4) defined in [2,4] where the tangent is parallel to the chord joining the end points on the curve is