Find the size of the remaining sides and angles of a right-angled triangle ABC given by :
(use the Pythagorean theorem and the functions sine, cosine, tangent and cotangent)

Find the size of the remaining sides and angles of a triangle ABC given by :
(use the sine rule and the cosine rule)

Find the value of the remaining trigonometric functions if you know :

Simplify the trigonometric expressions :

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