Respuesta :

Answer:

The exact value is 3

Step-by-step explanation:

1. You simplify the equation by factoring 2 from the first two terms

2. Apply Pythagorean to make the equation 2 * 1 + csc^2(π/5) - cot^2(π/5)

- Then apply Pythagorean again to make the equation 2 * 1 + 1

3. Simplify and you get 3

Hope this helps :)