Expressing 4cos2(165°) – 2 as a single trignometric function, it will be written as : 2cos(330º)
Trigonometric function can be defined as real functions in mathematics that forms a relationship between an angle of a right-angled triangle to the ratio of the length of two sides.
Trigonometric function is very important as it is mostly concerned with functions of angles and their application in calculation
In conclusion, to express 4cos2(165°) – 2 as a single trignometric function, it will be written as : 2cos(330º)
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