[" e roots of the equation "],[" then the value of "],[-15)^(-2)" is "]

If alpha and beta are the roots of the equation x^(2)-15x+1=0 then the value of ((1)/(alpha)-15)^(-2)+((1)/(beta)-15)^(-2) is

If 2-i is a root of the equation ax^2+12x+b=0 .then the value of ab is equal to a)45 b)15 c)-15 d)-45

If tan "" (alpha )/(2) and tan "" (beta)/( 2) are the roots of the equation 8x ^(2) -26x + 15 =0, then find the value of cos (alpha + beta).

If tan "" (alpha )/(2) and tan "" (beta)/( 2) are the roots of the equation 8x ^(2) -26x + 15 =0, then find the value of cos (alpha + beta).

If alpha,beta are the roots of the equation x^(2)-2p(x-4)-15=0 then the set of values of p for which one root is less than 1 and the other root is greater than 2 is

If 2 is root of the equation 2x^(2)+kx+4=0 , then what is the value of the other root?

The roots of the equation x^(2) - 8x + 15 = 0 are