Find an unknown side using \(\frac{𝑎}{sin𝐴} \) = \(\frac{𝑏}{sin𝐵} \) = \(\frac{𝑐}{sin𝐶 } \) Find an unknown angle using \(\frac{sin𝐴}{𝑎 ...
Higher - The gradients of two perpendicular lines will always multiply to make –1. Make sure you are familiar with finding the equation of a line and calculating gradient to understand equations of ...
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