Each trigonometric function also has an inverse that can be used to find an angle from a ratio of sides. The inverses of sin (x), cos (x), and tan (x), are arcsin (x), arccos (x) and arctan (x ...

Drag the square down the column to allow Excel to calculate the remaining tangent values without entering new formulas into the function window.

Revise the relationship between trigonometric formula and graphs as part of National 5 Maths.

Revise how to find all the solutions for a trigonometric function as part of National 5 Maths.

7 GIFs illustrate trigonometry concepts, making math more engaging and fun.