National 5 Maths Trigonometric skills learning resources for adults, children, parents and teachers. ... Using the sine and cosine rules to find a side or angle in a triangle.

Provides a review of pre-calculus, algebra and trigonometry integrated with the second half of Calculus I. Inverse trig functions and their derivative, logarithmic functions and their derivative, ...

National 5; Using the sine and cosine rules to find a side or angle in a triangle The sine rule. The sine rule can be used to find an angle from 3 sides and an angle, or a side from 3 angles and a ...

Instead, the pair of students used a trigonometric rule called the Law of Sines, which does not rely on the Pythagorean theorem. Two people had previously proved the theorem using trigonometry ...