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 ...

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<em>Additional comment</em>
This simplifies to -(1+√2). Your calculator can verify the choice for you.
Answer:1. 7 2. 
Step-by-step explanation:
1.
= 7
2.
( doesn't have any simplest radical form)
Answer:
He needs to get 96%
Step-by-step explanation:
Add 96 89 77 and 78 together and divide by 4, it should be 85
When you have the same denominator. Other than that have different denominators will not be possible.