Given the function f(x) = −2x + 8, find x if f(x) = 14 ...?
2 answers:
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Using a trigonometric identity, it is found that the tangent of the angle is of:
The sine and the cosine of the angle are related according to the following identity:
For this problem, the sine is given by:
Hence the cosine is found as follows:
On the third quadrant the cosine is negative, hence:
The tangent of an angle is given by the sine divided by the cosine, hence:
More can be learned about trigonometric identities at brainly.com/question/26676095
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