The equation `tan^4x-2sec^2x+a=0` will have at least one solution if

The equation tan^(4)x-2sec^(2)x+a=0 will have at least one solution if

The equation tan^(4)x-2sec^(2)x+a^(2)=0 will have at least one solution, if

The equation tan^(4)x-2sec^(2)x+a^(2)=0 will have at least one solution, if

The equation tan^(4) x - 2 sec ^(2) x + a = 0 will have at least one solution if

The interval of a for which the equation tan^(2)x-(a-4)tan x+4-2a=0 has at least one solution AA x in[0,pi/4]a in(2,3) b.a in[2,3] c.a in(1,4) d.a in[1,4]

If the equation cot^(4) x - 2 cosec^(2) x + a^(2) = 0 has at least one solution, then the sum of all possible ntergral values of a is equal to

The values of 'a' for which the equation 4^x-a2^x-a+3=0 has at least one solution.

The equation cos^(4)x-sin^(4)x+cos2x+alpha^(2)+alpha=0 will have at least one solution, if

The equation cos^(4)x-sin^(4)x+cos2x+alpha^(2)+alpha=0 will have at least one solution, if

The total number of solutions of the equation tan x+sec x=2 which lie in the interval [0,2 pi] is