why sin(x)≈x, (i.e. the famous small-angle approximation)

Why does cos(t)=x and sin(t)=y?

The Sine Function: f(x) = sin(x)

Proof of the derivative of sin(x) | Derivatives introduction | AP Calculus AB | Khan Academy

Solve sin⁡〖(x) 〗=0.3 Where 0≤x≤360

Solve for all values of x when 2 sin x +1 =0 over [0, 360]

Does sin¯¹(sin x) = x?

Limit of sin(x)/x as x goes to Infinity (Squeeze Theorem) | Calculus 1 Exercises

Integral ∫ sin(sin x -x) limit 0 to 2pi

Sin(90-A), Sin(90+A), Cos(180-A), Cos(180+A), Sin(270-A), Sin(270+A),Cos(360-A) How Why Trigonometry

sin(-x) = -sin(x). sin(x) is an odd function. cos(-x) = -cos(x) cos(x) is an even function.

Derivative of sin(x) and cos(x), PROOF

Derivative of sin(x) from First Principles

Integral of sin^2 x

Solving Trigonometric Equations: sin x = 1/2

Is sin^-1 equal to arcsin or 1/sin ?!

Trigonometric Equation: Solve cos (x) - sin (x) = 0

Derivative of sin x and cos x

Derivative of Sine X = Cos X || Differentiate Sin X || Proof in Calculus Math

Proof: Limit of sinx/x as x approaches 0 with Squeeze Theorem | Calculus 1