The set of exhaustive values of 'a' for which the inequality `(a^2+3)x^2+(a+2)x-4<2` holds of at least one negative x, is

The set of exhaustive values of a for which the equation |ax-2|=2x^(2)+ax+4 has at least one positive root,is

The set of values of 'a' for which the inequality x^(2)-(a+2)x-(a+3)<0 is satisfied by atleast one positive real x,

The true set of values of 'a' for which the inequality int_(a)^(0)(3^(-2x)-2*3^(-x))dx>=0 is true is -

The exhaustive set of values of a for which inequation (a -1)x^2- (a+1)x+ a -1>=0 is true AA x >2 (a) (-oo,1) (b)[7/3,oo) (c) [3/7,oo) (d) none of these

The exhaustive set of values of a for which inequation (a -1)x^2- (a+1)x+ a -1>=0 is true AA x >2 (a) (-oo,1) (b)[7/3,oo) (c) [3/7,oo) (d) none of these

The exhaustive set of values of a for which inequation (a -1)x^2- (a+1)x+ a -1>=0 is true AA x >2 (a) (-oo,1) (b)[7/3,oo) (c) [3/7,oo) (d) none of these

The true set of values of 'a' for which the inequality int_(x)^(0)(3^(-2x)-2.3^(-x)) dx ge 0 is true , is

The true set values of 'a' for which the inequality int _(a)^(0)(3^(-2x)-2.3^(-x)) dx ge 0 is true, is

The true set values of 'a' for which the inequal- ity int _(a)^(0)(3^(-2x)-2.3^(-x)) dx ge 0 is true, is

The true set values of 'a' for which the inequality int _(a)^(0)(3^(-2x)-2.3^(-x)) dx ge 0 is true, is