What do sin, cos, tan, csc, sec, and cot stand for?

Trigonometric term sin θ, cos θ, tan θ, csc θ, sec θ, and cot θ are used by almost all students. Did you know those are just initials? Let’s learn what do they stand form.

Sin=sine cos=cosine sec=secant cosec=cosecant tan=tangent cot=cotangent

sin, cos, tan, csc, sec, and cot full forms

InitialFull Form
sinSine
cosCosine
tanTangent
csc / cosecCosecant
secSecant
cotCotangent