Webwe can find approximations of the trigonometric functions for small angles measured in radians by considering their graphs near input values of 𝑥 = 0. Let’s start with 𝑦 = 𝑥 s i n and compare it to line 𝑦 = 𝑥. When the angle θ (in radians) is small we can use these approximations for sine, cosine and tangent: Sin θ ≈ θ. Cos θ ≈ 1 − θ2 2. Tan θ ≈ θ. If we are very daring we can use cos θ ≈ 1. Webrevision notes on…