The basic trigonometric functions are:

    • \boldsymbol{{\textbf{Sine (sin } \theta ): \frac{\textbf{Opposite side}}{\textbf{Hypotenuse}}}}
    • \boldsymbol{{\textbf{Cosine (cos } \theta ): \frac{\textbf{Adjacent side}}{\textbf{Hypotenuse}}}}
    • \boldsymbol{{\textbf{Tangent (tan } \theta ): \frac{\textbf{Opposite side}}{\textbf{Adjacent side}}}}
    • \boldsymbol{{\textbf{Secant (sec } \theta ): \frac{\textbf{Hypotenuse}}{\textbf{Adjacent side}}}}
    • \boldsymbol{{\textbf{Cosecant (cosec } \theta ): \frac{\textbf{Hypotenuse}}{\textbf{Opposite side}}}}
    • \boldsymbol{{\textbf{Cotangent (cot } \theta ): \frac{\textbf{Adjacent side}}{\textbf{Opposite side}}}}