If `alpha-x` is a factor of `x^2-ax + b` , then `alpha(a-alpha)` is equal to-

If alpha and beta are the roots of x^(2) - ax + b^(2) = 0, then alpha^(2) + beta^(2) is equal to :

If alpha" and "beta are the roots of x^(2)-ax+b^(2)=0 , then alpha^(2)+beta^(2) is equal to

If alpha and beta are the roots of x^(2)-ax+b^(2)=0 , then alpha^(2) +beta^(2) is equal to_______

If alpha and beta are the roots of x ^(2) - ax + b ^(2) = 0, then alpha ^(2) + beta ^(2) is equal to

If alpha,beta are roots of the equation ax^(2)-bx-c=0, then alpha^(2)-alpha beta+beta^(2) is equal to-

If tan alpha and tan beta are the roots of x^(2) + ax + b = 0, then (sin (alpha + beta))/(sin alpha sin beta) is equal to

If alpha is a repeated root of ax^2+bx +c=0 , then lim_(xrarralpha)(sin(ax^2+bc+c))/(x-alpha)^2 is equal to

If alpha is a repeated root of ax^2+bx +c=0 , then lim_(xrarralpha)(sin(ax^2+bc+c))/(x-alpha)^2 is equal to