A lever is a simple machine that changes the magnitude and direction of the force applied to move an object. It minimizes the effort required to lift the object. In other words, a lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum.
trigonometry, the branch of mathematics concerned with specific functions of angles and their application to calculations. There are six functions of an angle commonly used in trigonometry. Their names and abbreviations are sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc).
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A lever is a simple machine that changes the magnitude and direction of the force applied to move an object. It minimizes the effort required to lift the object. In other words, a lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum.
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Answer:
trigonometry, the branch of mathematics concerned with specific functions of angles and their application to calculations. There are six functions of an angle commonly used in trigonometry. Their names and abbreviations are sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc).