sin(90 – θ) = cos θ
cos(90 – θ) = sin θ
cot(90 – θ) = tan θ
cosθsinθtanθ + sin2θ = cos2θ + sin2θ = 1
sin(90∘−θ)cos(90∘−θ)cot(90∘−θ)+sin2θ=___
sin(90−θ)cos(90−θ)cot(90−θ) + sin2θ =
Prove that: sin(90−θ)cos(90−θ)cot(90−θ) + sin2θ = 1.