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# Tangent Penta Angle Identity Calculator

Tangent is one of the trigonometric function. In the right angled triangle, tangent refers to the opposite side over the adjacent side. It is abbreviated as 'tan'. It is found by dividing the length of the opposite side by the length of the adjacent side. The formula for tan function is tan(-degrees) = -tan(degrees). Online trigonometric tangent penta angle calculator which is used to find the penta angle identity for tangent (tan) from the known angle value.

## Find the Penta Angle Identity for Tangent

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Tangent is one of the trigonometric function. In the right angled triangle, tangent refers to the opposite side over the adjacent side. It is abbreviated as 'tan'. It is found by dividing the length of the opposite side by the length of the adjacent side. The formula for tan function is tan(-degrees) = -tan(degrees). Online trigonometric tangent penta angle calculator which is used to find the penta angle identity for tangent (tan) from the known angle value.

#### Formula:

tan 5α = (tan5α - 10 tan3α + 5 tanα ) / (1 - 10 tan2α + 5 tan4α) Where, tan = Tangent

### Example:

If α is 90 degrees, then Tangent Penta Angle?

#### Solution:

tan 5α = (tan5α - 10 tan3α + 5 tanα ) / (1 - 10 tan2α + 5 tan4α)
= (tan590 - 10 tan390 + 5 tan90 ) / (1 - 10 tan290 + 5 tan490)
= 251.15 °