IF = arccos x,-1 ≤ x ≤ 1, then (a)cos θ = x and ≤ θ ≤ π/2

Last updated: 8/4/2022

IF = arccos x,-1 ≤ x ≤ 1, then (a)cos θ = x and ≤ θ ≤ π/2 (b)cos θ = x and θ ∈ (-∞, ∞) (c)cos θ = x and 0≤ θ ≤ 2π (d)cos θ =x and 0 ≤ θ ≤ π