Answer:
<h3><u /></h3>
<u>Trigonometric identities</u>
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Therefore, using the <u>identities</u>, the given expression can be <em>simplified</em> as follows:

I could be wrong on this..
9) yes
10) If you live in Georgia, then you live in Atlanta
11) If three points are collinear, then they are coplanar.
if three points are coplanar, the they are collinear.
let's recall that an inverse function has the same pair of coordinates as the original function, but backwards, or namely the inverse's range is the original's domain.

(5*12*12)/2
5*6*12
Assuming simplified means the last answer
360
It would be = 9.76 * 10^9