" Q.1.If "a=5+2root(2)(6)" and "b=(1)/(a)," then what will be value of "a^(2)+b^(2)

If a=5+2sqrt(6) and b=(1)/(a), then find the value of a^(2)+b^(2)

24.1fa=5+2sqrt(6) and b=(1)/(a) then find the value of a^(2)+b^(2)

If a+b=6, a-b=2 then what is the value of 2(a^(2)+b^(2)) ?

If (2a)/b =1/2 , what is the value of b/a ?

If a : b = c : d = 1 : 6, then what is the value of (a^2+c^2)/(b^2+d^2) ?

If r and s are roots of x^(2) + px + q = 0 , then what is the value of (1//r^(2))+ ( 1//s^(2)) ?

If the roots of the equation 4B^(2)+ lambda B-2 =0 are of the from k/(k+1)and (k+1)/(k+2), then what is the value of lambda ?

If 5a=6b+7 and a -b =3, what is the value of b/2 ?