We know that thecosecant functionis the ratio of the hypotenuse and the opposite side in a right-angled triangle. It can also be written as the reciprocal of the sine function. Therefore the domain of trigonometric function cosec x does not contain values where sin x is equal to zero. We...
sine function identities some of the common sine identities are: sine (θ) = cos(π/2 − θ) = 1/cosec(θ) arcsin (sin θ) = θ, for −π/2 ≤ θ ≤ π/2 cos 2 (θ) + sin 2 (θ) = 1 sin (2x) = 2sin...