Trigonometric formula

Determine the value of the function tg x (tangens) when cotg x = -0.8 (cotangent); x holds in the second quadrant)

Correct answer:

t =  -1.25

Step-by-step explanation:

2π  x  pi  t1=1/(0.8)=45=141=1.25 x1=π180°arctan(t1)=π180°arctan((1.25))51.3402  x2=180+x1=180+(51.3402)128.6598   t1=tanx2=tan128.65980825409° =(1.25)=1.25  t = 1 / t1  t=1/(0.8)=45=141=1.25

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Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.

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