Category: Unit 3
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3.4 Linear and Angular Speed
Linear speed and angular speed are both used to measure the motion of objects, but they refer to different types of motion. Linear speed refers to the speed that an object moves in a straight path along a trajectory. For example, linear speed could refer to a car driving along a straight road. Angular speed…
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3.3 The Unit Circle and Circular Functions
Meet your best friend – the unit circle! The unit circle is an integral part to helping you succeed in trigonometry. Memorize every part of it (it’s not as overwhelming as it would appear at first glance), and use it to your advantage. During my college trigonometry class, I drew the unit circle on the…
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3.2 Applications of Radian Measure
Before we can get into the applications of radian measure, first we must define what exactly a radian is. In simple terms, a radian is a unit of measurement, similar to degrees but relating primarily to circles; however, we do use radians in trigonometric functions. A radian is an angle whose corresponding arc in a…