Question

What is the exact value of tan (StartFraction 5 pi Over 8 EndFraction)

Answer 1

Answer:

D.

Step-by-step explanation:

HOPE IT HELPS MUCH UNTO YOU

Answer 2

9514 1404 393

Answer:

  (d)  -√((2+√2)/(2-√2))

Step-by-step explanation:

5π/8 is a 2nd-quadrant angle whose reference angle is greater than π/4. This means the tangent is negative with a magnitude greater than 1. The only reasonable choice is ...

  $\displaystyle -\sqrt{\frac{2+\sqrt{2}}{2-\sqrt{2}}}$

_____

Additional comment

This simplifies to -(1+√2). Your calculator can verify the choice for you.