Help I can't find the answer
Find the exact values of sin θ/2 and cos θ/2 for sin θ = 2/7 on the interval 0° ≤ θ ≤ 90° .

For angles between 0º and 90º, we know and are both positive.

Then falls between 0º and 45º, so both and are also positive.

Recall the double angle identities,

We know sine and cosine should be positive, so taking the square root of both sides gives us

Also recall the Pythagorean identity,

Then

and from here we get

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (