Prove $\frac { \sin 4 x + \sin 2 x } { \cos 4 x + \cos 2 x } = \tan 3 x$

question 49

Essay

Prove $\frac { \sin 4 x + \sin 2 x } { \cos 4 x + \cos 2 x } = \tan 3 x$ .

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Definitions:

Sales Forecast

An estimate of the amount of sales a company expects to achieve over a certain period of time, based on historical data, market analysis, and other factors.

Root Mean Square Error

It is a measure used to assess the differences between values predicted by a model or an estimator and the observed values.

Sales Details

Specific information related to the sales transactions of a business, including quantities sold, prices, dates, and customer information.

Value of K

In statistics, it often represents a constant or a specific value in equations and formulas.