What does (sec θ − cos θ)(cosec θ − sin θ)(tan θ + cot θ) equal?

sec θ − cos θ = si$n^2$θ/cos θ, cosec θ − sin θ = co$s^2$θ/sin θ and tan θ + cot θ = 1/(sin θ cos θ). The product is 1.