The number of solutions of the equation `x^3 +2 x^2 +5 x + 2 cos x = 0` in `(0,2 pi]` is

The number of solutions of the equation x^(3)+2x^(2)+5x+2cos x=0 in (0,2 pi] is

The number of solutions of the equation x^(3)+2x^(2)+5x+2cos x=0 in [0,2 pi] is lambda then (lambda)/(4)=

Find the number of solutions of the equation x^3+2x^2+5x+2cosx=0 in [0,2pi]

The number of solutions of the equation x^(3)+2x^(2)+5x+2cosx=0 in [0,2pi] is

The number of solutions of the equation tan x + sec x = 2 cos x and cos x ne 0 lying in the interval (0, 2pi) is : a)2 b)1 c)0 d)3

Write the number of solutions of the equation tan x+sec x=2cos x in the interval [0,2 pi].

The number of solution of the equation x^(3)+x^(2)+3x+2sin x=0 in -2 pi<=x<=4 pi is

Find the number of solution of the equation sqrt(cos 2x+2)=(sin x + cos x) in [0, pi] .