Sin 2x Cos 2x 1
What Are the Meanings of "sin", "cos", "tan", "csc", "sec" and "cot"?
The abbreviations "sin," "cos," "tan," "csc," "sec" and "cot" stand for the six trigonometric functions: sine, cosine, tangent, cosecant, secant and cotangent. Each office represents a particular relationship between the measure of one of the angles and the ratio between ii sides of a right triangle.
In trigonometry, the three sides of a correct triangle are identified as the hypotenuse, the side opposite the selected bending, and the side adjacent to the selected angle. Each of the trigonometric functions relates the mensurate of the selected angle to i of 3 ratios involving the lengths of the sides. The sine of an angle is equal to the length of the side opposite the angle over the length of the hypotenuse. The cosine of an angle is equal to the length of the next side over the length of the hypotenuse. The tangent of an angle is equal to the length of the opposite side over the side by side side. The trigonometric values for an bending of a sure measure are always the same, and they can be found in a trigonometric tabular array. The other three functions, cosecant, secant and cotangent, are the reciprocal functions of the sine, cosine and cotangent, respectively. The cosecant of an angle equals i/sine, the secant equals ane/cosine and the cotangent equals 1/tangent.
Sin 2x Cos 2x 1,
Source: https://www.reference.com/world-view/meanings-sin-cos-tan-csc-sec-cot-649489239ebd645a?utm_content=params%3Ao%3D740005%26ad%3DdirN%26qo%3DserpIndex&ueid=dbd80d0e-1792-4fda-a7aa-5f16be83d820
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