The equation `2^(2x)+(a-1)2^(x-1)+a=0` has root of opposite signs, then the set of values of a is. a) `a in (0,oo)` b) `a in (-1,0)` c) `ain (oo,1/3)` d) `a in (0,1/3)`

The equation 2^(2x) + (a - 1)2^(x+1) + a = 0 has roots of opposite sing, then exhaustive set of values of a is

The equation 2^(2x) + (a - 1)2^(x+1) + a = 0 has roots of opposite sing, then exhaustive set of values of a is

The equation 2^(2x) + (a - 1)2^(x+1) + a = 0 has roots of opposite sing, then exhaustive set of values of a is

If the equation 2^(2x)+a*2^(x+1)+a+1=0 has roots of opposite sign, then the exhaustive set of real values of a is

The equation 3^(2x)+(K-1)3^(x+1)+K=0 has roots of opposite signs ,then the set of values of K is (0,2/a] .where a is equal to

If the equation 2^(2x)+a*2^(x+1)+a+1=0 has roots of opposite sign, then the exhaustive set of real values of a is (a)(−∞,0) (b)(−1,−2/3) (c)(−∞,−2/3) (d)(−1,∞)

If the equation 2^(2x)+a*2^(x+1)+a+1=0 has roots of opposite sign, then the exhaustive set of real values of a is (a)(−∞,0) (b)(−1,−2/3) (c)(−∞,−2/3) (d)(−1,∞)

If alpha,beta are the roots of the quadratic equation (p^(2)+p+1)x^(2)+(p-1)x+p^(2)=0 such that unity lies between the roots then the set of values of p is (i) 0 (ii) p in(-oo,-1)uu(0,oo)( iii) p in(-1,oo) (iv) (-1,1)