AQA A-level Maths Small angle approximations
This page covers the following topics:
Like degrees, radians are an alternative unit for measuring angle. There are 360º, or 2π radians in a full turn.
The small-angle approximations are estimates of the basic trigonometric functions, valid when θ ≈ 0 and θ is in radians.
We can use the small-angle approximations to solve more complicated algebraic expressions.
End of page