Excel does not provide functions for secant, cosecant or its hyperbolic counterparts, ... Click the "Formulas" tab and click "Math & Trig" button in the Function Library group.

In the mid-twentieth century, American tool manufacturers sometimes distributed trigonometry tables that included advertisements for their products. This small paper pamphlet includes definitions of ...

Reciprocal identitiesEvery trigonometric function has a reciprocal partner, ... The reciprocal identities show us that: sin θ = 1/csc θ (sine and cosecant are reciprocals) cos θ = 1/sec θ ...

Inverse Trigonometric Functions Practice Questions 2025: ... 8 cosec = π/6 = cosec 5π/6 = 2, but π/6 ≠ 5π/6. Since the cosecant function is not one-one, ...

Basic Trigonometry formulas Trigonometry deals with the connections between the sides and angles of a right-angled triangle. ... cosec 2 θ - cot 2 θ = 1 ⇒ cosec 2 θ = 1 + cot 2 θ ⇒ cot 2 ...