Irrational number has unsolvable root overs.
Last two are now our options

Hence its not irrotational.
Hence
Option C is irrational.
The Atlantic Ocean has an average depth of about 12,000 feet, to the nearest thousands. It is the second largest ocean in the world. The Atlantic Ocean and the Arctic Ocean are separated by a submarine ridge that extends from the south east of Greenland to the North Scotland. The atlantic Ocean can be divided into two parts based on its shape and they are North Atlantic Ocean and South Atlantic Ocean. These two parts have totally different type of water currents. The North Atlantic Ocean has some of the busiest shipping lanes as commercial ships ply through this route.
10 to the power of 3 would be 1000.
2 to the power of 3 would be 8.
1000 x 8 = 8000
I hope this helped you <3
So, when we're tasked with things like this, rewriting everything in terms of sine and cosine and combining fractions often trivializes things, so doing just that gives us:

So out expression is 1/cos(x).