The Easiest Way to Memorize the Trigonometric Unit Circle

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#The sine rule is used when we are given either a) two angles and one side, or b) two sides and a non-included angle. The cosine rule is used when we are given either a) three sides or b) two sides and the included angle. Study the triangle ABC shown below. Let C stand for the angle at C and so on. • #Join this channel to get access to perks: •    / @mathslab101  

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