Trigonometric EquationHard
Question
If A = sin2 x + cos4 x , then for all real x
Options
A.
B.1 ≤ A ≤ 2
C.
D.
⇒ 
More Trigonometric Equation Questions
If tan 3θ + tanθ = 2tan 2θ , then θ is equal to (n ∈ z)...The number of values of x in the interval [0, 3π] satisfying the equation 2sin2x + 5sinx - 3 = 0 is...The smallest positive root of the equation, tan x - x = 0 lies in...If α = 3 sin-1 and β = 3 cos-1 where the inverse trigonometric functions take only the principal values, then ...If cos θ = - and π < θ < , then the value of 4 tan2 θ - 3 cosec2 θ is equal to -...