" ii) "12K_(4)^(2)+8K_(4)-20K

If K_(1) and K_(2) are the values of K such the (K,2-2K),(-K+1,2K),(-4-K,6-2K) are collinear. Then K_(1)^(2)+K_(2)^(2)

If y=e^(-x)cos xandy_(n)+k_(n)y=0, wherey _(n)=(d^(n)y)/(dx^(n)) andk are constants AA n in N, then (a)k_(4)=4 (b) k_(8)=-16 (c) k_(12)=20 (d) k_(16)=-24

Find the values of k for which (4-k)x^(2)+(2k+4)x+(8k+1)=0 has real and equal roots.

60.A consecutive reaction occurs with two equilibria which co-exist together P(k_(1))/(k_(2) Q (k_(3))/(k_(4) R Where k_(1) , k_(2) , k_(3) and k_(4) are rate constants.Then the equilibrium constant for the reaction P harr R is (1) (k_(1)*k_(2)) / (k_(3)*k_(4) ) (2) (k_(1)*k_(4)) / (k_(2)k_(3) ) (3) k_(1) * k_(2) * k_(3)*k_(4) (4) (k_(1)*k_(3)) / (k_(2)k_(4)) ]]

If one zero of p(x)=4x^(2)-(8k^(2)-40k)x-9 is negative of the other, find values of k .

For what values of k ,(4-k)x^(2)+(2k+4)x+8k+1=0 is a perfect square

For what value of k,(4-k)x^(2)+(2k+4)x+(8k+1)=0 is a perfect square.